[ las-er-til-ee-uh n, -til-yuh n ]
/ ˌlæs ərˈtɪl i ən, -ˈtɪl yən /


belonging or pertaining to the reptilian suborder Lacertilia, comprising the lizards.


a lacertilian reptile.
Also la·cer·tian [luh-sur-shuh n] /ləˈsɜr ʃən/.

Origin of lacertilian

1850–55; < New Latin Lacertili(a) (Latin Lacert(a) Lacerta + -ilia, neuter plural of -ilis -ile) + -an Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for lacertilian

British Dictionary definitions for lacertilian

/ (ˌlæsəˈtɪlɪən) /

noun Also: lacertian (ləˈsɜːʃən)

any reptile of the suborder Lacertilia (lizards)


of, relating to, or belonging to the Lacertilia

Word Origin for lacertilian

C19: New Latin, from Latin lacerta lizard
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

Science definitions for lacertilian

[ lăs′ər-tĭlē-ən ]

Relating to or characteristic of lizards and closely related reptiles.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.