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Webster’s Dictionary (1828)



39,199 words match “IS”

ISONICOTINIC a. 2 definitions
Pertaining to, or derived from, isonicotine.
ISONITROSO- n.
ing from (also used adjectively), signifying: Pertaining to, or designating, the characteristic, nitrogenous radical, NOH, called the isonitroso group.
ISONOMIC a.
The same, or equal, in law or right; one in kind or origin; analogous; similar. Dana.
ISONOMY n.
Equal law or right; equal distribution of rights and privileges; similarity.
ISOPATHY n. 3 definitions
The system which undertakes to cure a disease by means of the virus of the same disease.
ISOPEPSIN n.
Pepsin modified by exposure to a temperature of from 40º to 60º C.
ISOPERIMETRICAL a.
Having equal perimeters of circumferences; as, isoperimetrical figures or bodies.
ISOPERIMETRY n.
The science of figures having equal perimeters or boundaries.
ISOPIESTIC a.
Having equal pressure. Isopiestic lines, lines showing, in a diagram, the relations of temperature and volume, when the elastic force is constant; -- called also isobars.
ISOPLEURA n.
A subclass of Gastropoda, in which the body is symmetrical, the right and left sides being equal.
ISOPOD a. 2 definitions
Having the legs similar in structure; belonging to the Isopoda. -- n.
ISOPODA n.
An order of sessile-eyed Crustacea, usually having seven pairs of legs, which are all similar in structure.
ISOPODIFORM a.
Having the shape of an isopod; -- said of the larvæ of certain insects.
ISOPODOUS a.
Same as Isopod.
ISOPOGONOUS a.
Having the two webs equal in breath; -- said of feathers.
ISOPRENE n.
An oily, volatile hydrocarbon, obtained by the distillation of caoutchouc or guttaipercha.C5H8 -- unsaturated, and used to make synthetic rubber by polymerization. In organic chemistry, viewed conceptually as the building block of the terpene series of hydrocarbons
ISOPYCNIC a. 2 definitions
al density, as different regions of a medium; passing through points at which the density is equal; as, an isopycnic line or surface.
ISORCIN n.
A crystalline hydrocarbon derivative, metameric with orcin, but produced artificially; -- called also cresorcin.
ISORROPIC a.
Of equal value. Isorropic line (in a diagram) (Geom.), the locus of all the points for which a specified function has a constant value. Newcomb.
ISOSCELES a.
Having two legs or sides that are equal; -- said of a triangle.
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