onion — onionlike, adj. oniony, adj. /un yeuhn/, n. 1. a plant, Allium cepa, of the amaryllis family, having an edible, succulent, pungent bulb. 2. any of certain similar plants. 3. the bulb of the onion plant. 4. the flavor or odor of this bulb. 5.… … Universalium
plant disease — ▪ plant pathology Introduction an impairment of the normal state of a plant that interrupts or modifies its vital functions. All species of plants, wild and cultivated alike, are subject to disease. Although each species is… … Universalium
Onion — On ion, n. [F. ognon, fr. L. unio oneness, unity, a single large pearl, an onion. See {One}, {Union}.] 1. (Bot.) A liliaceous plant of the genus {Allium} ({Allium cepa}), having a strong flavored bulb and long hollow leaves; also, its bulbous… … The Collaborative International Dictionary of English
Onion fish — Onion On ion, n. [F. ognon, fr. L. unio oneness, unity, a single large pearl, an onion. See {One}, {Union}.] 1. (Bot.) A liliaceous plant of the genus {Allium} ({Allium cepa}), having a strong flavored bulb and long hollow leaves; also, its… … The Collaborative International Dictionary of English
Onion fly — Onion On ion, n. [F. ognon, fr. L. unio oneness, unity, a single large pearl, an onion. See {One}, {Union}.] 1. (Bot.) A liliaceous plant of the genus {Allium} ({Allium cepa}), having a strong flavored bulb and long hollow leaves; also, its… … The Collaborative International Dictionary of English
onion — [un′yən] n. [ME oynon < OFr oignon < L unio (gen. unionis), oneness, unity, also a kind of single onion: see UNION] 1. a plant (Allium cepa) of the lily family, having an edible bulb with a strong, sharp smell and taste 2. the bulb of this… … English World dictionary
Onion — Onions redirects here. For the name and those bearing it, see Onions (surname). This article is about the plants. For other uses, see Onion (disambiguation). Onion Onions Scientific classification … Wikipedia
Onion epidermal cell — The onion epidermal cell provides a protective layer against unwanted viruses that may harm the sensitive tissues. Because of its simple structure and transparency it is often used to introduce students to plant anatomy.[1] These properties also… … Wikipedia
Onion Johnny — For the children s novel, see Onion John. Onion Johnny is the nickname given to the Breton farmers and agricultural laborers that sell distinctive pink onions door to door in Great Britain. They finally adapt this nickname for themselves as ar… … Wikipedia
onion — /ˈʌnjən / (say unyuhn) noun 1. a widely cultivated plant of the lily family Allium cepa, having an edible succulent bulb of pungent taste and smell. 2. the bulb. 3. any of the certain plants similar to the onion, as A. fistulosum (Welsh onion). 4 …
