'Nightgown' definitions:
Definition of 'nightgown'
From: WordNet
noun
Lingerie consisting of a loose dress designed to be worn in bed by women [syn: nightgown, gown, nightie, night- robe, nightdress]
Definition of 'Nightgown'
From: GCIDE
- Nightgown \Night"gown`\, n. A loose gown used for undress; also, a gown used for a sleeping garment. [1913 Webster]