System Glossary
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Definition of Term

(English) Thin, contractile disc with a central opening (the pupil) in front of the lens in vertebrate eyes. (See also: eye, pupil, vertebrates)
(French) Disque mince et contractile avec une ouverture centrale (la pupille) en avant du cristallin des yeux des vertébrés. (See also: eye, pupil, vertebrates)
(Portuguese) Disco contráctil com uma abertura central (a pupila) à frente da lente olho dos vertebrados. (See also: eye, pupil, vertebrates)

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