What do a.m. and p.m. stand for?


[huhm-uh k] /ˈhʌm ək/
Also, hammock. an elevated tract of land rising above the general level of a marshy region.
a knoll or hillock.
Also, hommock. a ridge in an ice field.
Origin of hummock
1545-55; humm- (akin to hump) + -ock
Related forms
hummocky, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for hummock
  • Water is toted from a nearby artesian well about which a hummock of ice is growing.
  • The bog surface is often uneven, with pronounced hummock and hollow microtopography.
  • The surface topography is hummock and hollow with fluctuating surface water levels in between the hummocks.
  • Habitats are level flats with shallow water tables and hummock-and-hollow microtopography.
British Dictionary definitions for hummock


a hillock; knoll
a ridge or mound of ice in an ice field
(mainly Southern US) Also called hammock. a wooded area lying above the level of an adjacent marsh
Derived Forms
hummocky, adjective
Word Origin
C16: of uncertain origin; compare hump, hammock
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for hummock

"knoll, hillock," 1550s, originally nautical, "conical small hill on a seacoast," of obscure origin, though second element is diminutive suffix -ock. In Florida, where the local form is hammock, it means a clump of hardwood trees on a knoll in a swamp or on a key.

Online Etymology Dictionary, © 2010 Douglas Harper
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