pseudobulb
Botanical term for the thickened, bulb-like stem of certain orchids that stores water and nutrients.
Many plants in the orchid family have pseudobulbs.
鱗茎 is a true bulb (like an onion), while 偽鱗茎 is a pseudobulb, a thickened stem that resembles a bulb but is structurally different.
Standard botanical term for pseudobulb.
Alternate kanji form; 仮 means 'temporary' or 'false', similar nuance to 偽.
Compound of 偽 (false, pseudo-) and 鱗茎 (bulb). A calque of the English 'pseudobulb'.