'Manhole' definitions:
Definition of 'manhole'
From: WordNet
noun
A hole (usually with a flush cover) through which a person can gain access to an underground structure
Definition of 'Manhole'
From: GCIDE
- Manhole \Man"hole`\, n. A hole through which a man may descend or creep into a drain, sewer, steam boiler, parts of machinery, etc., for cleaning or repairing. [1913 Webster]
Synonyms of 'manhole'
From: Moby Thesaurus