Wiktionary
a. (alternative spelling of semi-aquatic English)
WordNet
adj. having an aquatic early or larval form and a terrestrial adult form [syn: amphibiotic]
partially aquatic; living or growing partly on land and partly in water; "a marginal subaquatic flora" [syn: subaquatic]
Usage examples of "semiaquatic".
But there was a completely unexpected phase that had never appeared in the story put together by the anthropologists on Earth: early in the man-ape era, the species had returned for a period to a semiaquatic environment, mainly as a consequence of not being equipped physically to deal with predators on land.
A couple of years ago I became fascinated by the Aquatic Ape Hypothesis, the notion that our transitional ancestors spent a period in a semiaquatic environment.
Leemoth, a Duros surgeon who specialized in amphibious and semiaquatic species.