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Glossary of Aerodynamics Terms
beginning with letter H
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hand-off Tweet Definition of hand-off Like Definition of hand-off on Facebook
noun
  1. a pass made in a backward direction
hangar Tweet Definition of hangar Like Definition of hangar on Facebook
noun
  1. A large garage like structure where aircraft are kept.
The plane taxied on over to the for repairs.
heading Tweet Definition of heading Like Definition of heading on Facebook
noun
  1. The title or topic of a document, article, chapter etc.
  2. (nautical) The direction into which a seagoing or airborne vessel's bow is pointing (apparent heading) and/or the direction into which it is actually moving relative to the ground (true heading)
helicopter Tweet Definition of helicopter Like Definition of helicopter on Facebook
noun
  1. An aircraft that is borne along by one or more sets of long rotating blades which allow it to hover, move in any direction including reverse, or land and having a smaller set of blades on its tail that stabilize the aircraft.
We flew over the city in a .
  1. a powered trowelling machine with spinning blades used to spread concrete.
verbto helicopter
  1. To transport by helicopter
helipad Tweet Definition of helipad Like Definition of helipad on Facebook
noun
  1. A small landing place from helicopters, denoted by a large "H"
heliport Tweet Definition of heliport Like Definition of heliport on Facebook
noun
  1. a facility, such as a small airport, designed to let helicopters take off and land
holding pattern Tweet Definition of holding pattern Like Definition of holding pattern on Facebook
noun
  1. A path taken by an aircraft waiting to land.
The plane flew in a for half an hour because one runway was closed.
  1. Any failure to advance; useless or unproductive activity .
This project is in a until all the parts arrive.
hole Tweet Definition of hole Like Definition of hole on Facebook
noun
  1. a hollow in a surface
Get some popcorn out of that popcorn bucket .
  1. an opening in a solid
There"s a in my bucket.
  1. a weakness, a flaw
I have found a in your argument.
  1. (golf) the portion of a game in which the players attempt to hit the ball into a particular hole.
I played 18 holes yesterday.
  1. (informal) a container or receptacle
car ; brain
  1. (physics) In semiconductors, a lack of an electron in an occupied band behaving like a positively charged particle.
The shortstop ranged deam into the to make the stop.
  1. (computer) A security vulnerability in software which can be taken advantage of by an exploit
  2. (context, anatomy, slang) An orifice, in particular the anus
  3. (informal) The place where a prisoner is kept
  4. (slang) An undesirable place to live or visit
Don"t go there, that place is a !
  1. (baseball) The rear portion of the defensive seam between the shortstop and the third baseman.
verb (hol, ing)
  1. (transitive) To make holes in (an object).
Shrapnel holed the ship"s hull.
home Tweet Definition of home Like Definition of home on Facebook
noun
  1. One"s own dwelling place; the house or structure in which one lives; especially the house in which one lives with his family; the habitual abode of one"s family; also, one"s birthplace.
The disciples went away again to their own . "John xx. 10.
Home is the sacred refuge of our life. "Dryden.
Home! home! sweet, sweet ! There"s no place like . "Payne.
  1. One"s native land; the place or country in which one dwells; the place where one"s ancestors dwell or dwelt.
Our old England. "Hawthorne.
  1. The place where a person was raised. childhood, Childhood or parental home. Home of one"s parents or guardian.
I left last year.
  1. The abiding place of the affections, especially of the domestic affections.
He entered in his house " his no more, For without hearts there is no . "Byron.
  1. The locality where a thing is usually found, or was first found, or where it is naturally abundant; habitat; seat.
the of the pine.
Her eyes are homes of silent prayer. "Tennyson.
Flandria, by plenty made the of war.'' "Prior.
  1. A place of refuge and rest; an asylum; as, a home for outcasts; a home for the blind; hence, especially, the grave; the final rest; also, the native and eternal dwelling place of the soul.
Man goeth to his long , and the mourners go about the streets. "Eccl. xii.
  1. In various games, the ultimate point aimed at in a progress; the goal.
  2. (baseball) The plate at which the batter stands. The home base.
  3. (lacrosse) The place of a player in front of an opponent"s goal; also, the player.
verb (hom, ing)
  1. (usually with "in on") To seek or aim for something.
The missile was able to on the target.
adjective
  1. Of or pertaining to one"s dwelling or country; domestic; not foreign; as home manufactures; home comforts.
  2. close, Close; personal; pointed; as, a home thrust.
adverb
  1. To one"s home or country; as in the phrases, go home, come home, carry home.
  2. close, Close; closely.
'How the charge reaches us, has been made out. "South.
They come to men"s business and bosoms. "Bacon.
  1. To the place where it belongs; to the end of a course; to the full length.
to drive a nail
to ram a cartridge
Wear thy good rapier bare and put it . "Shak.
horn Tweet Definition of horn Like Definition of horn on Facebook
noun (horns, -)
  1. (countable) A hard growth of keratin that protrudes from the top of the head of certain animals.
  2. (uncountable) The hard substance from which animals' horns are made, sometimes used by man as a material for making various objects.
an umbrella with a handle made of
  1. (countable) Any of several musical wind instruments.
  2. (countable) An instrument resembling a musical horn and used to signal others.
hunting
  1. (countable) A loud alarm, especially one on a motor vehicle.
  2. (countable) A conical device used to direct waves.
antenna
loudspeaker
  1. (context, informal, countable) Generally, any brass wind instrument.
  2. (context, slang, countable, from the horn-shaped earpieces of old communication systems that used air tubes) A telephone.
  3. (context, uncountable, coarse, slang, definite article) An erection of the penis.
  4. (context, countable, coarse, slang, definite article) A peninsula or crescent-shaped tract of land. "to navigate around the horn."
hydroplane Tweet Definition of hydroplane Like Definition of hydroplane on Facebook
noun
  1. (nautical): A specific type of motorboat used exclusively for racing.
    1. A hydrofoil
    2. A seaplane
    3. The wing of a submarine, used to help control depth.
verb (hydroplan, ing)
  1. To skim the surface of a body of water while moving at high speed.
    Don't drive too fast on wet roads or the car may and cause you to lose control of the vehicle.

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