air hole

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air hole

A hole or opening that allows for the passage of air, especially to facilitate breathing.
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.

air hole



1. a hole that allows the passage of air, esp for ventilation
2. (Physical Geography) a section of open water in a frozen surface
3. (Aeronautics) a less common name for air pocket1
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

air′ hole`

1. an opening to admit or discharge air.
2. an opening in the frozen surface of a river or pond.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.air hole - a local region of low pressure or descending air that causes a plane to lose height suddenlyair hole - a local region of low pressure or descending air that causes a plane to lose height suddenly
atmospheric phenomenon - a physical phenomenon associated with the atmosphere
2.air hole - a hole that allows the passage of airair hole - a hole that allows the passage of air
hole - an opening deliberately made in or through something
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in classic literature ?
We every day pass through the air hole some bread at the end of a fork, and some meat when he asks for it; but alas!
He carries with him everywhere a dirty little tin case, with air holes in the cover.
One could see the 250 air holes on the inner side of the tentacles.
Slice a small air hole into the top of each pastry and brush with the egg.
The PBG diagram is created by calculating each PBG, the forbidden wavelength range for propagation, associated with a specified ratio of air hole radius (r) and lattice constant (a).
The Court of First Instance heard the 21-year-old Indian man, an office assistant, peeped through a small air hole in the bathroom wall and secretly filmed the woman with his mobile phone at her staff accommodation.
According to the circular, no more than two cylinders can be installed in a Hiace wagon and they should be installed in the trunk of the vehicle in a separate box with an outer air hole. Similarly, no cylinder or pipe connected with the cylinder should be installed/ laid in the passenger cabin.
Present research gives an extension to the optimization of secondary air hole placing, outlet shape, fuel area, secondary air area and the swirler angle which may further be taken as future prospects of present research.
With a liquid of the above RI we need not require such a material (which is difficult to find) but to infiltrate once the PCF with air hole is fabricated.
As shown in Figure 6, when the voltage is fixed, the mode field area increases with increase of air hole radius; when air hole radius is constant, the effective mode area increases with the applied voltage reducing.
The lateral shift occurs at the gap between the first and the second row of air hole. (b) The corresponding dispersion for PhC waveguides with different [DELTA].
Oleg Nikolaevich went into a coma after being sunk in a 4-meter-deep air hole in the sand on the beach of Bulgarian town of Primorsko on August 14.