球莖, 鱗莖
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
燈泡
a glass globe containing a filament that glows when electricity is passed through it, used for lighting
球部, 球狀物
a rounded part of a glass tube, such as the end of a thermometer or a pipette