from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A hole, usually with a cover, through which a person may enter a sewer, boiler, drain, or similar structure.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A hole in the ground used to access the sewers or other underground vaults and installations.
from the GNU version of the Collaborative International Dictionary of English
- 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.
from The Century Dictionary and Cyclopedia
- n. A hole through which a man may enter a sewer, drain, cesspool, or the like, for cleaning or repairing; in steam-boilers, hot-water tanks, keirs, etc., a hole formed in the shell, through which a man may enter to the interior for cleaning, inspection, or repairs.
- n. In coal-mining: An excavation or refuge-hole made in the side of an underground engine-plane or horse-road. [Eng.] A small and generally short passage used for the ingress and egress of the miners. [Pennsylvania anthracite, region.] A niche cut in the side of a railroad-tunnel as a refuge-hole.
- To enter or use a manhole, as for the purpose of examining or repairing machinery.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a hole (usually with a flush cover) through which a person can gain access to an underground structure
man + hole (Wiktionary)