stomas

1.【植】气孔;【动】口;(昆虫的)气门,呼吸孔

1.a tiny pore in the outer layer of a plant leaf or stem that controls the passing of water vapour and other gases into and out of the plant

2.a mouth, or an opening that acts as or is shaped like a mouth

3.an artificial opening made in an organ of the body, especially an opening in the colon or ileum made via the abdomen