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A thin ice crystal floating high in the atmosphere in certain conditions of clear, cold weather.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Physical Geography) meteorol one of many needle-like ice crystals that form cirrus clouds in clear cold weather
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
an acicular ice crystal afloat in the atmosphere.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||ice needle - small crystals of ice |
downfall, precipitation - the falling to earth of any form of water (rain or snow or hail or sleet or mist)
H2O, water - binary compound that occurs at room temperature as a clear colorless odorless tasteless liquid; freezes into ice below 0 degrees centigrade and boils above 100 degrees centigrade; widely used as a solvent
crystal - a solid formed by the solidification of a chemical and having a highly regular atomic structure
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