semi·​aquat·​ic ˌse-mē-ə-ˈkwä-tik How to pronounce semiaquatic (audio)
: growing equally well in or adjacent to water
also : frequenting but not living wholly in water

Examples of semiaquatic in a Sentence

Recent Examples on the Web Crews and colleagues surveyed spiders and reported in 2019 that 21 taxonomic families include semiaquatic species, suggesting that the evolutionary event occurred multiple independent times. Amber Dance, Smithsonian Magazine, 17 May 2024 In Nature, the team used the density of bones to see if the Spinosaurus was semiaquatic. Elizabeth Gamillo, Discover Magazine, 6 Mar. 2024 Currently the largest semiaquatic mammal in the Great Lakes is the North American river otter. Smithsonian Magazine, Smithsonian Magazine, 27 Mar. 2024 The larval stage of crane flies, also known as leatherjackets, is aquatic or semiaquatic. The Arizona Republic, 12 Mar. 2024 Nicknamed after the semiaquatic rodents who begin to take shelter this time of year ahead of the winter season, this month's moon began its evolution towards its fullest phase after the new moon rose on Nov. 13. Skyler Caruso, Peoplemag, 17 Nov. 2023 The Spinosaurus was semiaquatic, hunting prey in rivers. Vivian La, Chicago Tribune, 4 June 2023 Scientists discover fossils of new predatory dinosaur species in Mongolia Earlier this month, scientists discovered a new fossil in Mongolia that was likely a semiaquatic diving predator. Teddy Grant, ABC News, 22 Dec. 2022 Nizar Ibrahim, a senior lecturer in paleontology at the University of Portsmouth, whose research has included findings indicating Spinosaurus was likely semiaquatic, told CNN he isn’t entirely convinced by the study’s findings yet. Zoe Sottile, CNN, 4 Dec. 2022

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'semiaquatic.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1833, in the meaning defined above

Time Traveler
The first known use of semiaquatic was in 1833

Dictionary Entries Near semiaquatic

Cite this Entry

“Semiaquatic.” Dictionary, Merriam-Webster, Accessed 16 Jun. 2024.

Kids Definition


semi·​aquat·​ic ˌsem-ē-ə-ˈkwät-ik How to pronounce semiaquatic (audio)
: growing well in or very near water
also : living near and often entering water but not living in it
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!