Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

Comprehensive
Dictionary Suite
Help
Help
Help
 
Advanced Dictionary    
Display options
Show syllables
Show Lookup History
Double-Click Lookup
  Show Spanish support
 
Pronunciation
Wordsmyth
  Phonics
  IPA
 
Entry formats
Standard
  Classic
 
Lookup History
stoma

sto·ma

stoma

pronunciation:
sto m
part of speech: noun
inflections: stomas, stomata
definition 1: any of various microscopic openings in the epidermis of a leaf or stem through which gases and water vapor are exchanged.
definition 2: a mouthlike opening, esp. an ingestive opening, as on certain worms.