Shaped like or having a carina or keel; ridged.(adjective)
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.
Use "carinate" in a sentence
"In my mind, "carinate" means that there is a distinct thickening of the shell carbonate along the perifery, not just a sharp change in curvature angular."
"More or less everything we currently know about this snail is in Anderson & Smith A redescription of the carinate pillsnail, Euchemotrema hubrichti (Pilsbry, 1940) (Pulmonata:Polygyridae), with notes on habitat and genetics."
"They showed that the long-snouted species M. superciliosus and M. leedsi had rather straight, robust, blunt-tipped teeth that belonged to the ‘crunch’ feeding guild, while broad-skulled species like M. cultridens had slender, slightly compressed, carinate teeth (carinae = cutting edges) that belonged to the ‘pierce’ guild."