comb. form of Gr. ἔλαιο-ν oil (properly olive-oil), used in technical, chiefly chemical, words, as Elæocerate [cf. CERATE], same as CERATE. Elæomargaric (acid), a. [cf. MARGARIC], an acid found in the oil extracted from the seeds of some species of Elæococca. Elæometer; also elaio- [See METER], ‘an instrument for determining the specific weight of oils, and so their purity’ (Syd. Soc. Lex.). Elæopten(e; also ela-. [Gr. πτην-ός winged, volatile: cf. Fr. éléoptène], the liquid part of a volatile oil, as distinguished from the crystallizable portion called ‘stearoptene’ or ‘camphor.’ Elæostearic (acid), a. [cf. STEARIC], a solid acid separated by the action of alcohol upon the solid fat obtained from the oil of Elæococca.
