- a usually subterranean and often globular bud having fleshy leaves emergent at the top and a stem reduced to a flat disk, rooting from the underside, as in the onion and lily.
- a plant growing from such a bud.
- the glass housing, in which a partial vacuum has been established, that contains the filament of an incandescent electric lamp.
- an incandescent or fluorescent electric lamp.
Origin of bulb
Examples from the Web for bulb
So, at the Home Depot in Connecticut, a 40-watt bulb costs $4.97, and a 60-watt bulb costs $6.97.
In 25,000 hours a regular 75-watt bulb would use $262.50 of electricity.
The 40-watt bulb costs $9.97 and the 60-watt bulb retails for $12.97.
Specifically, the law said a bulb should provide 100 watts of brightness while using 72 watts or less.The Best Green Idea in Obama’s Climate-Change Speech|Daniel Gross|June 25, 2013|DAILY BEAST
By May, its bulb can grow as big as two centimeters, and turns pink and then a deep red as it matures.
Allow the bulb and tube to cool, then repeat the heating once more.A Handbook of Laboratory Glass-Blowing|Bernard D. Bolas
He clasped the bulb again and again threw it dramatically away.The Regent|E. Arnold Bennett
When a bulb is not of a sufficiently regular form, it may sometimes be re-made by re-collecting the glass, and re-blowing it.
The bulb, however, did not always change hands, often serving merely as a gambling basis; it even may not have existed at all.A Wanderer in Holland|E. V. Lucas
Lamps that waste electricity are those which have (bad wiring) (frayed cords) (dirty shades or bulb).Electricity for the 4-H Scientist|Eric B. Wilson