ice needle


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ice needle

n.
A thin ice crystal floating high in the atmosphere in certain conditions of clear, cold weather.

ice needle

n
(Physical Geography) meteorol one of many needle-like ice crystals that form cirrus clouds in clear cold weather

ice′ nee`dle


n.
an acicular ice crystal afloat in the atmosphere.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.ice needle - small crystals of iceice 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
References in periodicals archive ?
Ice needle. A long, thin crystal whose cross-section is typically hexagonal.
An "ice needle" would poke a hole in the ice for a long, hooked "ice measure" that would hook on the bottom of the ice and give an exact measurement of thickness, Mr.
Lunar coronas can occur in almost any cloud which is not so opaque as to hide the Moon altogether, but most of them are caused by clouds with water droplets, only some of them by high clouds with ice needles. And, instead of being caused by reflection and refraction (bending) of light by ice crystals (as is the case with halos), coronas are caused by a process called "diff-raction." Diffraction occurs when a tiny aperture (like a pinhole) or particle (like a cloud droplet or ice needle edge) is similar in size to the wavelengths of light.