Semirecondite :: Semirecondite (a.) Half hidden or half covered; said of the head of an insect when half covered by the shield of the thorax.
Semiring :: Semiring (n.) One of the incomplete rings of the upper part of the bronchial tubes of most birds. The semerings form an essential part of the syrinx, or musical organ, of singing birds..
Smirch :: Smirch (v. t.) To smear with something which stains, or makes dirty; to smutch; to begrime; to soil; to sully..