bulb

[ buhlb ]
/ bʌlb /

noun

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Origin of bulb

1560–70; <Latin bulbus<Greek bolbós onion, bulbous plant

OTHER WORDS FROM bulb

bulbed, adjectivebulbless, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for bulb

British Dictionary definitions for bulb

bulb
/ (bʌlb) /

noun

a rounded organ of vegetative reproduction in plants such as the tulip and onion: a flattened stem bearing a central shoot surrounded by fleshy nutritive inner leaves and thin brown outer leavesCompare corm
a plant, such as a hyacinth or daffodil, that grows from a bulb
a rounded part of an instrument such as a syringe or thermometer
anatomy a rounded expansion of a cylindrical organ or part, such as the medulla oblongata
Also called: bulbous bow a bulbous protuberance at the forefoot of a ship to reduce turbulence

Word Origin for bulb

C16: from Latin bulbus, from Greek bolbos onion
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for bulb

bulb
[ bŭlb ]

n.

A globular or fusiform anatomical structure or enlargement.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for bulb

bulb
[ bŭlb ]

A rounded underground storage organ that contains the shoot of a new plant. A bulb consists of a short stem surrounded by fleshy scales (modified leaves) that store nourishment for the new plant. Tulips, lilies, and onions grow from bulbs. Compare corm rhizome runner tuber.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.