Webster’s Revised Unabridged Dictionary · 1913
Stenostome
Sten′o·stome (stĕn′ō·stōm), a. [Gr. στενός narrow, little + στόμα mouth.] (Zoöl.) Having a small or narrow mouth; — said of certain small ground snakes (Opoterodonta), which are unable to dilate their jaws.