[ak-wuh-nawt, -not, ah-kwuh-]
- an undersea explorer, especially one who skin-dives from or lives for an extended period of time in a submerged dwelling.
- a skin-diver.
Origin of aquanaut
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a person who lives and works underwater
- a person who swims or dives underwater
C20: from aqua + -naut, as in astronaut
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
Word Origin and History for aquanaut
Online Etymology Dictionary, © 2010 Douglas Harper