Isomer :: Isomer (n.) A body or compound which is isomeric with another body or compound; a member of an isomeric series.
Isomeric :: Isomeric (a.) Having the same percentage composition; -- said of two or more different substances which contain the same ingredients in the same proportions by weight, often used with with. Specif.: (a) Polymeric; i. e., having the same elements united in the same proportion by weight, but with different molecular weights; as, acetylene and benzine are isomeric (polymeric) with each other in this sense. See Polymeric. (b) Metameric; i. e., having the same elements united in the same proportions
Isometrical :: Isometrical (a.) Pertaining to, or characterized by, equality of measure..
Isometrical :: Isometrical (a.) Noting, or conforming to, that system of crystallization in which the three axes are of equal length and at right angles to each other; monometric; regular; cubic. Cf. Crystallization..