volatile oils
11Volatile alkali — Alkali Al ka*li (?; 277), n.; pl. {Alkalis} or {Alkalies}. [F. alcali, ultimately fr. Ar. alqal[=i] ashes of the plant saltwort, fr. qalay to roast in a pan, fry.] 1. Soda ash; caustic soda, caustic potash, etc. [1913 Webster] 2. (Chem.) One of a …
12Volatile — Oiseau Pour les articles homonymes, voir oiseau (homonymie) …
13volatile oil — a distilled oil, esp. one obtained from plant tissue, as distinguished from glyceride oils by their volatility and failure to saponify. [1790 1800] * * * …
14volatile oil — vol′atile oil n. chem. a distilled oil, esp. one obtained from plant tissue, as distinguished from glyceride oils by their volatility and failure to saponify • Etymology: 1790–1800 …
15Essential oils — Essential Es*sen tial ([e^]s*s[e^]n sjal), a. [Cf. F. essentiel. See {Essence}.] 1. Belonging to the essence, or that which makes an object, or class of objects, what it is. [1913 Webster] Majestic as the voice sometimes became, there was forever …
16essential oils — plural noun Oils which give plants their fragrance, used in cosmetics, toiletries, etc and in aromatherapy (also called ethereal oils or volatile oils) • • • Main Entry: ↑essence …
17ferment oils — Ferment Fer ment, n. [L. fermentum ferment (in senses 1 & 2), perh. for fervimentum, fr. fervere to be boiling hot, boil, ferment: cf. F. ferment. Cf. 1st {Barm}, {Fervent}.] 1. That which causes fermentation, as yeast, barm, or fermenting beer.… …
18oil, volatile — The aromatic, oxygenated derivatives of terpenes that can be obtained from plants (in our case), usually by distillation. Unlike a fixed oil that has no scent (unless rancid), volatile oils are all scent. (Example: oil of Peppermint.) …
19Fixed oils — Fixed Fixed (f[i^]kst), a. 1. Securely placed or fastened; settled; established; firm; imovable; unalterable. [1913 Webster] 2. (Chem.) Stable; non volatile. [1913 Webster] {Fixed air} (Old Chem.), carbonic acid or carbon dioxide; so called by Dr …
20List of essential oils — Essential oils are volatile and liquid aroma compounds from natural sources, usually plants. Essential oils are not oils in a strict sense, but often share with oils a poor solubility in water. Essential oils often have an odor and are therefore… …
