1. Relating to or of the nature of or having a mouth or mouthlike opening
   - stomatous 
2. Relating to or constituting plant stomata
   "stomatal openings"
   - stomatous

See also: astomatal, stoma

• undulate
• undulation
• undulatory
• undulatory theory
• unduly
• undutiful
• undutifulness
• undyed
• undying
• undynamic
• uneager
• unearned
• unearned income
• unearned increment
• unearned revenue
• unearned run
• unearth
• unearthly
• unease
• uneasily
• uneasiness
• uneasy
• uneatable
• uneaten
• uneconomic