stoma
/ˈstəʊmə/noun
(pl. stomas 或 stomata /-mətə/)
1- Botany any of the minute pores in the epidermis of the leaf or stem of a plant, forming a slit of variable width which allows movement of gases in and out of the intercellular spaces【植】气孔。亦称STOMATE.
1.1
- Zoology a small mouth-like opening in some lower animals【动】（低级动物的）口腔状小口。
1.2
- Medicine an artificial opening made into a hollow organ, especially one on the surface of the body leading to the gut or trachea【医】（尤指在身体表面直达内脏或气管的）人造口。
派生词
stomal
adjective （Medicine）词源
late 17th cent.: modern Latin, from Greek stoma 'mouth'.