'Pin-hole pupil' definitions:
Definition of 'Pin-hole pupil'
From: GCIDE
- Pupil \Pu"pil\, n. [F. pupille, n. fem., L. pupilla the pupil of the eye, originally dim. of pupa a girl. See Puppet, and cf. Pupil a scholar.] (Anat.) The aperture in the iris; the sight, apple, or black of the eye. See the Note under Eye, and Iris. [1913 Webster]
- Pin-hole pupil (Med.), the pupil of the eye when so contracted (as it sometimes is in typhus, or opium poisoning) as to resemble a pin hole. --Dunglison. [1913 Webster]