the larval stage of a lamprey.
Origin of ammocete
1855–60; < New Latin ammocoetes literally, something bedded in sand < Greek ámmo(s) sand + koítē bed
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
the larva of primitive jawless vertebrates, such as the lamprey, that lives buried in mud and feeds on microorganisms
Word Origin for ammocoete
C19: from New Latin ammocoeteēs, literally: that lie in sand, from Greek ammos sand + koitē bed, from keisthai to lie
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