(PLANT) [noun] [C] - a round root of some plants from which the plant growsTulips, onions and lilies all grow from bulbs.Plant the bulbs in soil 15 centimetres apart and three to five centimetres deep.See picture: Flowers and plants
BULB
Meaning of BULB in English
Cambridge English vocab. Кембриджский английский словарь. 2012