English dictionary

iris

noun

Pronunciation

ˈaɪɹɪs

Audio pronunciation

Parts of speech

Definitions

noun

  1. diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening

noun

  1. muscular diaphragm that controls the size of the pupil which in turn controls the amount of light that enters the eye; it forms the colored portion of the eye

noun

  1. plants with sword-shaped leaves and erect stalks bearing bright-colored flowers composed of three petals and three drooping sepals

Synonyms

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