bulbとは

意味・読み方・使い方

語源

From Middle English bulb, bolbe, from Latin bulbus (“bulb, onion”), from Ancient Greek βολβός (bolbós, “plant with round swelling on underground stem”).

発音

• enPR: bŭlb, IPA^(key): /bʌlb/
• 韻: -ʌlb

名詞

bulb (複数形 bulbs)

1. Any solid object rounded at one end and tapering on the other, possibly attached to a larger object at the tapered end.

   the bulb of the aorta

2. A light bulb.
3. The bulb-shaped root portion of a plant such as a tulip, from which the rest of the plant may be regrown.
   • 2005, Plato, Sophist. Translation by Lesley Brown. 265c.

     the plants which grow in the earth from seed or bulbs.

   • 2015 February 7, Val Bourne, “The quiet man of the world of snowdrops”, in The Daily Telegraph (London), page G8:

     Once it [a snowdrop variety] became established, some bulbs were lifted and passed on to be chipped (i.e. cut into small pieces かつ grown on).

4. (nautical) a bulbous protuberance at the forefoot of certain vessels to reduce turbulence.
5. (dated, neuroanatomy) The medulla oblongata.

派生語

関連する語

動詞

bulb (三人称単数 現在形 bulbs, 現在分詞 bulbing, 過去形および過去分詞形 bulbed)

1. (intransitive) To take the shape of a bulb; to swell.

アナグラム

• blub