n, pl  rec*ti   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  .
 
 
 
Similar sounding terms:  rick·ets 
 
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