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A univalent hydrocarbon radical of the ethylene series, CH2:CH; - - called also vinyl. See Vinyl.

A white, crystalline hydrocarbon, regarded as a polymeric variety of ethylene, obtained in heavy oil of wine, the residue left after making ether; -- formerly called also concrete oil of wine.

An oily hydrocarbon regarded as a polymeric variety of ethylene, produced with etherin.

Acetylene.

An unsymmetrical, divalent, hydrocarbon radical, C2H4 metameric with ethylene but written thus, CH3.CH to distinguish it from the symmetrical ethylene, CH2.CH2. Its compounds are derived from aldehyde. Formerly called also ethidene.

ing a good digestion; as, eupeptic food; an eupeptic man. Wrapt in lazy eupeptic fat. Carlyle.

imes; every instant. [R.] "Eternal law is silently present everywhere and everywhen." Carlyle.

nguage." Geddes. "Exaggerative pictures." W. J. Linton. -- Ex*ag"ger*a*tive*ly, adv. Carlyle.

To exhaust or wear out. [Obs.] "Seeds . . . wearied or exantlated." Boyle.

- Ex*cus"a*ble*ness, n. -- Ex*cus"a*bly, adv. The excusableness of my dissatisfaction. Boyle.

Cursing; imprecatory; vilifying. Carlyle. -- Ex"e*cra*tive*ly, adv.

A boiling up; effervescence. [Obs.] Boyle.

Capable of being exhaled or evaporated. Boyle.

Scantiness; smallness; thinness. [R.] Boyle.

Scanty; small; slender; diminutive. [R.] "Exiguous resources." Carlyle. -- Ex*ig"uous*ness, n. [R.]

the outside next to the bark. The leaves are commonly netted-veined, and the number of cotyledons is two, or, very rarely, several in a whorl. Cf. Endogen. Gray.

A name given by Lestiboudois to dicotyledons; -- so called because the plumule is naked.

A plant Whose radicle is not inclosed or sheathed by the cotyledons or plumule. Gray.

Having a radicle which is not inclosed by the cotyledons or plumule; of or relating to an exorhiza.

Relying on experiment or experience. "an experimentarian philosopher." Boyle. -- n.