Main Entry: rec·tus

Pronunciation: \ˈrek-təs\

Function: noun

Inflected Form(s): plural rec·ti \-ˌtī\

1 : any of several straight muscles (as the rectus abdominis or the rectus femoris)
2 : any of four muscles of the eyeball that arise from the border of the optic foramen and run forward to insert into the sclera of the eyeball: a : one that is the thinnest and narrowest and inserts into the superior aspect of the sclera—called also rectus superior, superior rectus b : one that is the longest, arises by two heads, and inserts into the lateral aspect of the sclera—called also lateral rectus, rectus lateralis c : one that is the broadest and inserts into the medial aspect of the sclera—called also medial rectus, rectus medialis d : one that inserts into the inferior aspect of the sclera—called also inferior rectus, rectus inferior