| horizontal angle |
The angle measured between two fixed objects (usually on shore) to aid in finding a boats position by determining the arc of a circle on which the boat must lie.
Ãâó: www.terrax.org/sailing/glossary/gh.aspx
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| hormesis |
Controversial theory which argues that there is a benefit to health, or decrease in biological damage from radiation as dose in increased (valid only for very small doses).
Ãâó: www.lbl.gov/abc/wallchart/glossary/glossary.html
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| horn |
(syn. Tool) - usually an amplifying element, that includes, or is fitted with, a tip in an ultrasonic probe.
Ãâó: home.att.net/~Berliner-Ultrasonics/us-gloss.html
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| hormone |
A chemical secretion, such as estrogen or progesterone, that the body produces to stimulate or slow down various body functions. The levels of some hormones increase 10-fold during pregnancy.
Ãâó: www.babycenter.com/glossary/H
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| hormonal therapy |
Type of biological therapy that adds, blocks, or removes hormones from the body to slow or stop the growth of certain cancers.
Ãâó: www.melanomacenter.org/glossary/h.html
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