(sumo) a ring-entering ceremony performed by rikishi, in the juryo and higher divisions, upon entering the dohyo

A bulbous iris, Iris xiphium, from the western Mediterranean; it has violet-purple flowers with a short perianth tube.

Iris foetidissima, a species of iris of Western Europe whose leaves give off a beefy smell when crushed or bruised.

An iris shot used at the end of a scene

plural of iris shot

(film) The use of an expanding or contracting black circle to open or close a cinematic scene.

Any of various hesperiid butterflies of the genus Mesodina.

plural of iris-skipper

ninjutsu techniques for stealth and infiltration

An adjustable diaphragm by which the diameter of an approximately circular opening may be controlled, as for regulating the aperture of a lens; it consists of a number of movable thin curved plates fastened at regular intervals around the inside of a ring, the positions of which are simultaneously adjusted by a single knob on the outside of the lens. It is used in cameras and microscopes.