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[stuh-lag-mahyt, stal-uh g-mahyt] /stəˈlæg maɪt, ˈstæl əgˌmaɪt/
a deposit, usually of calcium carbonate, more or less resembling an inverted stalactite, formed on the floor of a cave or the like by the dripping of percolating calcareous water.
Origin of stalagmite
1675-85; < New Latin stalagmites < Greek stálagm(a) a drop (stalag-, stem of stalássein to drip + -ma noun suffix of result) + New Latin -ites -ite1
Related forms
[stal-uh g-mit-ik] /ˌstæl əgˈmɪt ɪk/ (Show IPA),
stalagmitical, adjective
stalagmitically, adverb
Can be confused
stalactite, stalagmite. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for stalagmite
Historical Examples
  • It will be seen that, at one place, the stalactite has united with the stalagmite below.

    The Prehistoric World E. A. Allen
  • Above these beds was a stratum of black earth, underneath a sheet of stalagmite.

    The Prehistoric World E. A. Allen
  • Under the stalagmite the largest number of animal bones have been found.

    Primitive Man Louis Figuier
  • The remains were very old, and were encrusted with stalagmite.

  • Rick sat with his back against the cold surface of a stalagmite column.

    The Caves of Fear John Blaine
  • stalagmite , a deposit (on the floor of caves) resembling an inverted stalactite.


    Allen Chaffee
  • Between two large masses of stalagmite was the body of a woman, robed in white.

    The Maroon Mayne Reid
  • A layer of stalagmite varying from one to fifteen inches in thickness.

  • Roof dust in a dry cavern is the equivalent of stalagmite in a wet one.

  • The investigation disclosed several different beds of stalagmite, cave earth, and breccia.

    The Prehistoric World E. A. Allen
British Dictionary definitions for stalagmite


a cylindrical mass of calcium carbonate projecting upwards from the floor of a limestone cave: formed by precipitation from continually dripping water Compare stalactite
Derived Forms
stalagmitic (ˌstæləɡˈmɪtɪk), stalagmitical, adjective
Word Origin
C17: from New Latin stalagmites, from Greek stalagmos dripping; related to Greek stalassein to drip; compare stalactite
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 stalagmite

1680s, from Modern Latin stalagmites (Olaus Wormius), from Greek stalagmos "a dropping," or stalagma "a drop, drip," from stalassein "to trickle" (see stalactite).

Online Etymology Dictionary, © 2010 Douglas Harper
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stalagmite in Science
A cylindrical or conical mineral deposit, similar to a stalactite but built up from the floor of a cave or cavern. Stalagmites are typically broader than stalactites. The two formations are often, but not always, paired, and they sometimes join at a midpoint to form a pillar. Compare stalactite.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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