Anything shaped like a bulb; rounded thing or enlarged part; specif., a lightbulb.
(intransitive) To take the shape of a bulb; to swell.
Other Word Forms of Bulb
Origin of Bulb
From Middle French bulbe, from Latin bulbus (“bulb, onion”), from Ancient Greek βολβός (bolbos, “plant with round swelling on underground stem”).
Latin bulbus from Greek bolbos bulbous plant
From American Heritage Dictionary of the English Language, 5th Edition
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