ETYPICAL
E*typ"ic*al, a. Etym: [Pref. e- + typical.] (Biol.)
Defn: Diverging from, or lacking conformity to, a type.
EU Eu. Etym: [Gr. su, from the same root as E. is; or with Skr. vasu good, prob. fr. the same root as E. was.]
Defn: A prefix used frequently in composition, signifying well, good, advantageous; — the opposite of dys-.
EUCAIRITE
Eu*cai"rite, n. Etym: [Gr. (Min.)
Defn: A metallic mineral, a selenide of copper and silver; — so called by Berzelius on account of its being found soon after the discovery of the metal selenium.
EUCALYN
Eu"ca*lyn, n. (Chem.)
Defn: An unfermentable sugar, obtained as an uncrystallizable sirup by the decomposition of melitose; also obtained from a Tasmanian eucalyptus, — whence its name.
EUCALYPTOL
Eu`ca*lyp*tol, n. Etym: [Eucalyptus + L. oleum oil.] (Chem.)
Defn: A volatile, terpenelike oil extracted from the eucalyptus, and consisting largely of cymene.