rectus definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
noun pl. recti
any of various straight muscles, as of the eye, neck, or thigh
Origin: Modern Latin ; from Classical Latin rectus (musculus), literally , straight (muscle): see recti-
rectus definition by American Heritage Dictionary
noun pl. rec·ti
Any of various straight muscles, as of the abdomen, eye, neck, and thigh.
Origin: New Latin (mūsculus) rēctus, from Latin, straight (muscle); see rectum.