lagophthalmos
la·gopht·hal·mos
noun
1.
abnormal condition in which an eye cannot close completely
Origin
From λαγώς (lagṓs, “hare”) + ὀφθαλμός (ophthalmós, “eye”), because hares were believed to sleep with their eyes open.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.