- (n.) The line of dehiscence of the sporangium of a fern. It is usually marked by two transversely elongated cells. See Illust. of Sporangium.
- (n.) The minute breathing pores of leaves or other organs opening into the intercellular spaces, and usually bordered by two contractile cells.
- (n.) A stigma. See Stigma, n., 6 (a) & (b).
- (n.) One of the minute apertures between the cells in many serous membranes.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). stoma. Retrieved September 20, 2026, from http://smartdefine.org/stoma/definitions/2066711 |
| Chicago | Webster's. 2011. "stoma" http://smartdefine.org/stoma/definitions/2066711 (accessed September 20, 2026). |
| Harvard | Webster's 2011, stoma, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/stoma/definitions/2066711>. |
| MLA | Webster's. "stoma" 28 May 2011. Web. 20 September 2026. <http://smartdefine.org/stoma/definitions/2066711> |