Dictionary.com Thesaurus.com

fathogram

American

[fath-uh-gram] / ˈfæð əˌgræm /

noun

the record made by a sonic depth finder.

Etymology

Origin of fathogram

First recorded in 1945–50; fatho(meter) ( def. ) + -gram ¹

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.