Dictionary » A » Altitude



1. Space extended upward; height; the perpendicular elevation of an object above its foundation, above the ground, or above a given level, or of one object above another; as, the altitude of a mountain, or of a bird above the top of a tree.

2. (Science: astronomy) The elevation of a point, or star, or other celestial object, above the horizon, measured by the arc of a vertical circle intercepted between such point and the horizon. It is either true or apparent; true when measured from the rational or real horizon, apparent when from the sensible or apparent Horizon.

3. (Science: geometry) The perpendicular distance from the base of a figure to the summit, or to the side parallel to the base; as, the altitude of a triangle, pyramid, parallelogram, frustum, etc.

4. Height of degree; highest point or degree. He is [proud] even to the altitude of his virtue. (Shak)

5. Height of rank or excellence; superiority.

6. Elevation of spirits; heroics; haughty airs. The man of law began to get into his altitude. (Sir W. Scott) meridian altitude, an arc of the meridian intercepted between the south point on the horizon and any point on the meridian. See meridian.

Origin: L. Altitudo, fr. Altus high. Cf. Altar, Haughty, Enhance.

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Evolution and environment question--breathing, etc

... is not much time for significant genetic adaptation to take place. For example, there was a recent study on the adaptation of Tibetans to high altitude, estimating it to have taken about 3000 years - which if true, is surprisingly fast. The more hardship a population is under, in terms of fraction ...

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by AstraSequi
Tue May 29, 2012 4:32 am
Forum: Evolution
Topic: Evolution and environment question--breathing, etc
Replies: 3
Views: 2832

Respiratory System

... all help me out please? My question is: Discuss, in detail, outlining the mecanisms involved, WHY YOU MIGHT BE TIRED AFTER A DAY OF SKIING AT HIGH ALTITUDE. I understand that there is a lack of oxygen, but how does that lack of oxygen affect your respiratory system and how the system works?

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by mel135
Sat Sep 11, 2010 4:45 pm
Forum: General Discussion
Topic: Respiratory System
Replies: 1
Views: 927

Controlling dreams

... work too well and I don't get the monsters killed. Or sometimes when I fly, it becomes desperate gliding barely off the ground and trouble gaining altitude. Talk about soaring and eagles then... Boy, am I weird or what? :P Of course, at some point, I realised that instead of gunning down the aliens ...

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by biohazard
Thu Oct 09, 2008 6:01 am
Forum: General Discussion
Topic: Controlling dreams
Replies: 22
Views: 17583

vegetation changes in environment

Does anyone know where I can find information about how vegetation changes with increasing altitude (going up a mountain) and with increasing latitude (going from the Equator to the North Pole)?

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by alex08
Wed Aug 06, 2008 1:45 pm
Forum: Ecology
Topic: vegetation changes in environment
Replies: 1
Views: 2298

What happens to the body envolving biology at High Altitudes

... whether this is the rite site for this kind of question but i have a human movement assessment and i was wondering. When people go to a higher altitude what happens to them i know that they become altitude sick but still does pressure between the bones increase resulting in weaker bones and ...

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by Iwanttolearn
Sun Mar 30, 2008 8:46 am
Forum: General Discussion
Topic: What happens to the body envolving biology at High Altitudes
Replies: 0
Views: 1029
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