ISOMERIC
isomeric
(adjective) of or relating to or exhibiting isomerism
Source: WordNet® 3.1
Etymology
Adjective
isomeric (not comparable)
(chemistry, physics) Being an isomer.
(chemistry) Exhibiting isomerism.
Source: Wiktionary
I`so*mer"ic, a. Etym: [Iso- + Gr. isomérique.] (Chem.)
Definition: 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 by weight, and with the same molecular weight,
but which a different structure or arrangement of the ultimate parts;
as, ethyl alcohol and methyl ether are isomeric (metameric) with each
other in this sense. See Metameric.
Source: Webster’s Unabridged Dictionary 1913 Edition