stoma
sto.ma \'sto--m*\ \-m*t-*\ n or sto.ma.ta also stomas [NL stomat-, stoma, fr. Gk] pl : any small opening (as in a lower animal or in the epidermis of a plant) like a mouth in form or function
sto.ma \'sto--m*\ \-m*t-*\ n or sto.ma.ta also stomas [NL stomat-, stoma, fr. Gk] pl : any small opening (as in a lower animal or in the epidermis of a plant) like a mouth in form or function