steno-, sten-

A narrow view.

1. Tolerating only a narrow range of host species.
2. Restricted to a narrow range of hosts: said of parasites that are limited to one or a few host species.

Restricted to a habitat with narrow parameters.

An abnormal narrowness of the chest wall.

Contraction or narrowing of the lumen of the trachea.

Stricture of a ureter.

1. A narrowing of the urethral meatus.
2. The stricture of the urethra (slitlike tube conveying urine from the internal urethral orifice).