Austin's vocabulary terms
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Abiotic | nonliving chemical and physical factors in the environment
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Absolute zero | (cryogenics) the lowest temperature theoretically attainable (at which the kinetic energy of atoms and molecules is minimal)
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Abyss | a bottomless gulf or pit
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Acceleration | an increase in rate of change
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Acid | An acid (from the Latin acidus meaning sour) is traditionally considered any chemical compound that, when dissolved in water, gives a solution with a hydrogen ion activity greater than in pure water, i.e. a pH less than 7.0. ...
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Acoustic | the study of the physical properties of sound … Acoustics is the interdisciplinary science that deals with the study of sound, ultrasound and infrasound (all mechanical waves in gases, liquids, and solids). A scientist who works in the field of acoustics
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Acquired behavior | behavior that is gotten through environmental forces
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Adaptation | Adaptation is one of the basic phenomena of biology. It is the process whereby an organism becomes better suited to its habitat. Also, the term adaptation may refer to a characteristic which is especially important for an organism's survival. ...
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Adult | a biologically grown or mature person
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After birth | the passing of the placenta following birth
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Aftershock | a tremor (or one of a series of tremors) occurring after the main shock of an earthquake
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Agnatha | superclass of eel-shaped chordates lacking jaws and pelvic fins: lampreys
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Agua | largest known toad species
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Air mass | a large body of air with uniform characteristics horizontally
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Air sac | An air-filled space in the body of a bird that forms a connection between the lungs and bone cavities and aids in breathing and temperature…Sacs that communicate with the respiratory, air-filled membranous system in birds and primates.
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Albino | A person or animal lacking normal pigmentation, with the result being that the skin and hair are abnormally white or milky and the eyes have a pink color.
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Alcohol | A colorless volatile flammable liquid, C 2 H 5 OH, synthesized or obtained by fermentation of sugars and starches and widely used.
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Algae | primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves
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Alloy | A homogeneous mixture or solid solution of two or more metals, the atoms of one replacing or occupying interstitial positions between the atoms of the other: Brass is an alloy of zinc and copper.
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Alluvial fan | a fan-shaped deposit where a fast flowing stream flattens out
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Alpine | Of, relating to, or characteristic of the Alps or their inhabitants. Of or relating to high mountains.
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Alternate current | In alternating current (AC, also ac) the movement (or flow) of electric charge periodically reverses direction. ...
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Altitude | The height of a thing above a reference level, especially above sea level or above the earth's surface.
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Alveoli | The plural of alveolus. The alveoli are tiny air sacs within the lungs where the exchange of oxygen and carbon dioxide takes place. ...
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Amber | A hard translucent yellow, orange, or brownish-yellow fossil resin, used for making jewelry and other ornamental objects.
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Amnionic fluid | The fluid bathing the fetus and serving as a shock absorber.
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Amphibian | A cold-blooded, smooth-skinned vertebrate of the class Amphibia, such as a frog or salamander, that characteristically hatches as an aquatic larva with ...
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Amplification | To make larger or more powerful
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Analysis | a detailed examination or an investigation of the component parts of a whole and their relations in making up the whole
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Anemia | a deficiency of red blood cells
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Anemometer | a gauge for recording the speed and direction of wind
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Angiosperm | plants having seeds in a closed ovary
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Angler | a fisherman who uses a hook or an anglerfish
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Animal | Any organism of the Kingdom Animalia, distinguished from plants by certain typical characteristics such as the power of locomotion, fixed structure and limited growth, and nonphotosynthetic metabolism
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Ankle | a gliding joint between the distal ends of the tibia and fibula and the proximal end of the talus
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Annelida | Any of various worms or wormlike animals of the phylum Annelida, characterized by an elongated, cylindrical, segmented body with bristles and including the earthworm and leech.
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Annual plant | An annual plant is a plant that usually germinates, flowers, and dies in one year. True annuals will only live longer than a year if they are protected from weather conditions.
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Anther | the part of the stamen that contains pollen
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Anthropologist | a social scientist who specializes in anthropology which is the study of the origin, behavior, and the physical, social, and cultural development of humans.
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Anus | the excretory opening at the end of the alimentary canal
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Appendages | An appendage in the broadest sense is an additional or subsidiary part existing on, or added to, something which can generally still function if the appendage is not there.
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Aqua | water
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Aquarium | a tank or pool or bowl filled with water for keeping live fish and underwater animals
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Aquatic | relating to or consisting of or being in water
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Aqueduct | A pipe or channel designed to transport water from a remote source, usually by gravity.
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Aquifer | underground bed or layer yielding ground water for wells and springs etc
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Arachnid | air-breathing arthropods characterized by simple eyes and four pairs of legs
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Archipelago | a group of many islands in a large body of water
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Arctic | A region between the North Pole and the northern timberlines of North America and Eurasia.
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Area | a particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture. a quantity expressing the two-dimensional size of a defined part of a surface, typically a region bounded by a close
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Arrow (chemical equation) | The arrow points in the direction of the reaction, from the reactants to the products.
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Artery | a blood vessel that carries blood from the heart to the body
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Arthropoda | jointed-foot invertebrates: arachnids
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Asexual reproduction | reproduction without the fusion of gametes
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Asteroid | any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter)
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Asteroid belt | the region of interplanetary space between Mars and Jupiter where most asteroids are found
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Astro | Involving astronomy
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Astrogeologist | The geology of celestial bodies.
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Astronomy | The scientific study of matter in outer space, especially the positions, dimensions, distribution, motion, composition,
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Atmosphere | The gaseous mass or envelope surrounding a celestial body,
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Atmospheric pressure | the pressure exerted by the atmosphere
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Atoll | an island consisting of a circular coral reef surrounding a lagoon
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Auditory | of or relating to the process of hearing
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Aurora australis | An aurora that occurs in southern regions of the earth. ...
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Auto | (self) On its own or one's own, by its own action
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Auxin | a plant hormone that promotes root formation and bud growth
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Aves | (ornithology) the class of birds
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Aviary | a building where birds are kept
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Aviation | A general term including the science and technology of flight through the air.
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Axis | A straight line about which a body or geometric object rotates or may be conceived to rotate
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