WordReference Random House Unabridged Dictionary of American English © 2026
sem•i•ter•res•tri•al
(sem′ē tə res′trē əl, sem′ī-),USA pronunciation adj. [Biol.]
- Ecologyliving mostly on land but requiring a moist environment or nearby water, esp. as a breeding site:Most amphibians are semiterrestrial.
- semi- + terrestrial 1915–20
'semiterrestrial' also found in these entries (note: many are not synonyms or translations):