Lexic.us

Definition of Bulb

1. Noun. A modified bud consisting of a thickened globular underground stem serving as a reproductive structure.

2. Noun. Electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity.

3. Noun. A rounded part of a cylindrical instrument (usually at one end). "The bulb of a syringe"

4. Noun. Anything with a round shape resembling a teardrop.

5. Noun. Lower or hindmost part of the brain; continuous with spinal cord; ('bulb' is an old term for medulla oblongata). "The medulla oblongata is the most vital part of the brain because it contains centers controlling breathing and heart functioning"

6. Noun. A rounded dilation or expansion in a canal or vessel or organ.

Definition of Bulb

1. n. A spheroidal body growing from a plant either above or below the ground (usually below), which is strictly a bud, consisting of a cluster of partially developed leaves, and producing, as it grows, a stem above, and roots below, as in the onion, tulip, etc. It differs from a corm in not being solid.

2. v. i. To take the shape of a bulb; to swell.

Definition of Bulb

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

2. Noun. A light bulb ¹

3. Noun. The bulb-shaped root portion of a plant such as a tulip, from which the rest of the plant may be regrown. ¹

¹ Source: wiktionary.com

Definition of Bulb

1. an underground bud [n -S] : BULBAR, BULBED [adj]

Medical Definition of Bulb

1. A modified underground stem which has one or more buds enclosed in fleshy modified leaves or scales which supply energy to the bud when they start to grow, onions and tulips have bulbs. (09 Oct 1997)

Lexicographical Neighbors of Bulb

buke muslin bukes bukkehorn bukkehorns bukovite bukovskyite bukovskyites bukshee bukshees bukshi

bukshis bukshish bulachite bulau bulb (current term) bulb of eye bulb of hair bulb of jugular vein bulb of lateral ventricle bulb of posterior horn of lateral ventricle of brain

bulbaceous bulbar bulbar apoplexy bulbar conjunctiva bulbar conjunctivae

Other Resources: