Iapetus

[ ahy-ap-i-tuh s, ee-ap- ]
/ aɪˈæp ɪ təs, iˈæp- /

noun

Classical Mythology. a Titan, son of Uranus and Gaea.
Astronomy. a natural satellite of the planet Saturn.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for iapetus

Iapetus

/ (aɪˈæpɪtəs) /

noun

a large outer satellite of the planet Saturn
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