Stoma

Sto"ma

(?), n.;
pl. Stomata (#).
[NL., fr. Gr. , , a mouth.] 1. (Anat.) One of the minute apertures between the cells in many serous membranes.
[1913 Webster]

2. (Bot.) (a) The minute breathing pores of leaves or other organs opening into the intercellular spaces, and usually bordered by two contractile cells. (b) The line of dehiscence of the sporangium of a fern. It is usually marked by two transversely elongated cells. See Illust. of Sporangium.
[1913 Webster]

3. (Zol.) A stigma. See Stigma, n., 6 (a) & (b).
[1913 Webster]

 

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Wed 19th December 2018