There are several words that can be used as synonyms for the word "orbicularis". One such word is circular, which refers to something that is round in shape or form. Another synonym is spherical, which indicates a three-dimensional shape that is perfectly round like a ball. Other synonyms include rounded, curved, or ring-shaped, which all describe shapes that have a circular or rounded appearance. The word orbicularis specifically refers to a muscle around the mouth or eye that forms circular contractions, so any synonyms used should have a similar connotation. These words can be useful in describing physical objects, patterns, designs, and even human anatomy.