Definition of quadratus in English:

Share this entry


Pronunciation: /kwäˈdrādəs/

noun (plural quadrati /-ˈdrātˌī/)

Any of several roughly square or rectangular muscles, e.g., in the abdomen, thigh, and eye socket.
Example sentences
  • The fourth layer is composed of a single muscle, pronator quadratus, which is not seen at this level.
  • In this section pronator quadratus is thinning and is seen for the last time.
  • The quadratus femoris and obturator externus muscles appear for the first time in this section.


Mid 18th century: from Latin, literally 'made square'.

For editors and proofreaders

Syllabification: qua·dra·tus

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.