Definition of "reptile" []

• Any of various cold-blooded, usually egg-laying vertebrates of the class Reptilia, such as a snake, lizard, crocodile, turtle, or dinosaur, having an external covering of scales or horny plates and breathing by means of lungs. (noun)
• A person regarded as despicable or treacherous. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "By the way, nothing cladistically out-of-line with the term reptile, so long as we agree that Reptilia is a clade in which case it includes Aves and excludes Synapsida of which mammals are part."
• "A cat is partially eaten leaving a zombie tail, which in turn is eaten by a snake that grows into a man-eating monster bigger than the title reptile of Anaconda."
• "The crux here is the Latin word reptile, which does not really mean "reptile" in its English sense, but rather "creeping" (though it is, of course, the source of our modern word "reptile")."