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Spanish iris
A bulbous iris, Iris xiphium, from the western Mediterranean; it has violet-purple flowers with a short perianth tube.
shinobi-iri
iris diaphragm
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.
iris diaphragms
plural of iris diaphragm
iris dilator muscle
A muscle of the eye, serving to dilate the iris.
iris dilator muscles
makuuchi dohyo-iri
(sumo) A group ring-entering ceremony performed by all members of the makuuchi division, except the yokozuna, after the juryo bouts.