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ACT TP Science

science vocabulary

TermDefinition
absorbance the capacity of a substance to absorb radiation, expressed as the common logarithm of the reciprocal of the transmittance of the substance.
beta the second of any series, as in chemistry or physics.
capillary of or pertaining to the apparent attraction or repulsion between a liquid and a solid
chromatid one of two identical chromosomal strands into which a chromosome splits longitudinally preparatory to cell division.
denature to deprive (something) of its natural character, properties, etc.
microscopy the technical field of using microscopes to view samples and objects that cannot be seen with the unaided eye (objects that are not within the resolution range of the normal eye).
exclusion an act or instance of excluding.
gamma the third in a series of items.
hexane any of five isomeric hydrocarbons having the formula C 6 H 14 , of the alkane series, some of which are obtained from petroleum: used as solvents and chemical intermediates and in fuels.
infrared the part of the invisible spectrum that is contiguous to the red end of the visible spectrum and that comprises electromagnetic radiation of wavelengths from 800 nm to 1 mm.
mesopause the boundary or transition zone between the mesosphere and the ionosphere.
montane pertaining to, growing in, or inhabiting mountainous regions.
nitrite a salt or ester of nitrous acid.
aperture an opening, as a hole, slit, crack, gap, etc.
osmosis the tendency of a fluid, usually water, to pass through a semipermeable membrane into a solution where the solvent concentration is higher, thus equalizing the concentrations of materials on either side of the membrane.
peat a highly organic material found in marshy or damp regions, composed of partially decayed vegetable matter: it is cut and dried for use as fuel.
plutonium a transuranic element with a fissile isotope of mass number 239 (plutonium 239) that can be produced from non-fissile uranium 238, as in a breeder reactor.
rallies to bring into order again; gather and organize or inspire anew.
sprawl to be stretched or spread out in an unnatural or ungraceful manner
stagnant not flowing or running, as water, air, etc.
sucrose a crystalline disaccharide, C 1 2 H 2 2 O 1 1 , the sugar obtained from the sugarcane, the sugar beet, and sorghum, and forming the greater part of maple sugar; sugar.
seemingly apparent; appearing, whether truly or falsely, to be as specified
polymer a compound formed from two or more polymeric compounds.
objective lens the lens or system of lenses in a telescope or microscope that is nearest the object being viewed
denature to deprive (something) of its natural character, properties, etc.
bog wet, spongy ground with soil composed mainly of decayed vegetable matter.
climatic of or pertaining to climate.
buoyancy the power to float or rise in a fluid; relative lightness.
genus the usual major subdivision of a family or subfamily in the classification of organisms, usually consisting of more than one species.
Methane a colorless, odorless, flammable gas, CH 4 , the main constituent of marsh gas and the firedamp of coal mines, obtained commercially from natural gas: the first member of the methane, or alkane, series of hydrocarbons.
Created by: zaineb_awad
 

 



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