bulb
bulb \'b*lb\ \.b*l-'ba--sh*s\ \'b*lbd\ n [L bulbus, fr. Gk bolbos bulbous
plant; akin to Arm bolk radi]sh 1a: a mass of overlapping membranous or
fleshy leaves on a short stem base enclosing one or more buds able to
develop into new plants and constituting the resting stage of many plants
(as lily, onion, hyacinth, tulip) 1b: a fleshy structure (as a tuber or
corm) resembling a bulb in appearance 1c: a plant having or developing
from a bulb 2: a bulb-shaped part; specif : a rounded glass envelope
enclosing the light source of an electric lamp or such an envelope
together with the light source it encloses 3: a rounded or swollen
anatomical structure 4: a camera setting that indicates that the shutter
can be opened by pressi ng on the release and closed by ending the pressure
- bul.ba.ceous aj