Definition of BULB

bulb

Meanings

Plural: bulbs

Noun

  • a modified bud consisting of a thickened globular underground stem serving as a reproductive structure
  • electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity
  • a rounded part of a cylindrical instrument (usually at one end)
    • "the bulb of a syringe"
  • anything with a round shape resembling a teardrop
  • lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata)
  • a rounded dilation or expansion in a canal or vessel or organ
  • The bulb-shaped underground portion of a plant such as a tulip, consisting of a shortened stem and many fleshy scale leaves, from which the rest of the plant may be regrown.
  • The medulla oblongata.
  • Any solid object rounded at one end and tapering on the other, possibly attached to a larger object at the tapered end.
  • Any solid object rounded at one end and tapering on the other, possibly attached to a larger object at the tapered end.
  • A light bulb (not necessarily bulbous in shape).
  • A bulbous protuberance at the forefoot of certain vessels to reduce turbulence.
  • An onion.

Verb

  • To take the shape of a bulb; to swell.

Origin / Etymology

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

Synonyms

electric light, electric-light bulb, incandescent lamp, light bulb, lightbulb, medulla, medulla oblongata

Scrabble Score: 8

bulb is a valid Scrabble (US) TWL word
bulb is a valid Scrabble Word in Merriam-Webster MW Dictionary
bulb is a valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 12

bulb is a valid Words With Friends word