<p><strong>Noun</strong></p><ul><li>The contractile, circular diaphragm forming the colored portion of the eye and containing a circular opening, the pupil, in its center.</li><li>Any plant of the genus <em>Iris</em>, having showy flowers and sword-shaped leaves.</li><li>A flower of this plant.</li><li>A messenger of the gods in Classical Mythology, regarded as the goddess of the rainbow.</li><li>A rainbow.</li><li>Any appearance resembling a rainbow.</li><li>An iris-in or iris-out in movies and television.</li><li>Iris diaphragm in optics and photography.</li></ul><p><strong>Verb</strong></p><ul><li>To begin or end a take or scene with an iris-in or iris-out, achieved by manipulation of an iris diaphragm on the camera or by editing the film.</li></ul><p><strong>End of Response</strong></p>