Dictionary.com
Thesaurus.com
Synonyms

subaqueous

American  
[suhb-ey-kwee-uhs, -ak-wee-] / sʌbˈeɪ kwi əs, -ˈæk wi- /

adjective

  1. existing or situated under water; underwater.

  2. occurring or performed under water.

  3. used under water.

subaqueous British  
/ sʌbˈeɪkwɪəs, -ˈækwɪ- /

adjective

  1. occurring, appearing, formed, or used under water

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
subaqueous Scientific  
/ sŭb-ā′kwē-əs /

  1. Found or occurring underwater.

  2. Formed or adapted for underwater use or operation.

Etymology

Origin of subaqueous

First recorded in 1670–80; sub- + aqueous

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Subaqueous, sub-ā′kwe-us, adj. lying under water: formed under water: living under water.—adj.

From Chambers's Twentieth Century Dictionary (part 4 of 4: S-Z and supplements) by Various

Further railway connections between the Mersey Subaqueous Railway and the surrounding land lines than those which yet exist are in contemplation.

From Scientific American Supplement, No. 530, February 27, 1886 by Various

Subaqueous mining is therefore one of the big problems which the mining engineer of the twentieth century must tackle.

From Twentieth Century Inventions A Forecast by Sutherland, George

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.