bulb
US /bʌlb/
UK /bʌlb/

1.
bulbo
a rounded, swollen part of the stem of some plants, such as the onion or tulip, that stores food and from which a new plant grows
:
•
Plant the tulip bulb in the fall for spring blooms.
Pianta il bulbo di tulipano in autunno per fioriture primaverili.
•
Onions grow from bulbs.
Le cipolle crescono da bulbi.
2.
lampadina
a glass globe containing a filament that glows when electricity is passed through it, used for lighting
:
•
The light bulb in the lamp needs to be replaced.
La lampadina nella lampada deve essere sostituita.
•
He screwed the new bulb into the socket.
Ha avvitato la nuova lampadina nella presa.
3.