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ETYMOLOGY DICTIONARY:
- iso-
- word-forming element meaning "equal, similar, identical; isometric," from comb. form of Gk. isos "equal to, the same as" (e.g. isometor "like one's mother"). Used properly only with words of Greek origin; the Latin equivalent is equi- (see equi-).
- merit (n.)
- c.1200, "spiritual credit" (for good works, etc.); c.1300, "spiritual reward," from O.Fr. merite "wages, pay, reward; thanks; merit, moral worth, that which assures divine pity," and directly from L. meritum "a merit, service, kindness, benefit, favor; worth, value, importance," neuter of meritus, pp. of merere, meriri "to earn, deserve, acquire, gain," from PIE root *(s)mer- "to allot, assign" (cf. Gk. meros "part, lot," moira "share, fate," moros "fate, destiny, doom," Hittite mark "to divide" a sacrifice).
- WIKIPEDIA
In chemistry,
isomers (pronounced /ˈaɪsəmə(ɹ)z/;
from Greek ἰσομερής, isomerès; isos = "equal",
méros = "part") are compounds with the same molecular
formula but different structural
formulas.[1]
Isomers do not necessarily share similar properties, unless they also
have the same functional
groups. There are many different classes of isomers, like
stereoisomers, enantiomers, geometrical isomers, etc. (see chart
below). There are two main forms of isomerism: structural
isomerism and stereoisomerism
(spatial isomerism).
