| avian |
The female reproductive cell (ovum) surrounded by a protective calcium shell and, if fertilized by the male reproductive cell (sperm) and properly incubated, capable of developing into a new individual. egg tooth : The temporary horny cap on the duckling's upper bill which serves for pipping (breaking through) the shell. The egg tooth falls off after the duckling hatches. embryo : A baby animal before it is hatched or born. ...
출처: pages.cpsc.ucalgary.ca/~becker/HatchingProgram/Tea...
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| avifauna |
All of the birds found in a given area.
출처: www.edu.gov.nf.ca/curriculum/teched/resources/glos...
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| aviation physiology |
The branch of physiology that deals with conditions encountered by humans in flying, mountain climbing, or space flight. The conditions studied are hypoxia, extreme temperature and radiation, effects of acceleration and decel
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| aviator's deafness |
A temporary or permanent nerve deafness found in some aviators. It is caused by prolonged exposure to loud noise.
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| Aviadenovirus |
adenoviruses of birds; a genus of viruses of the family Adenoviridae that infect many bird species, causing a wide variety of diseases; infection by some viral species is asymptomatic. Species names are abbreviated by a prefix derived from the host genus and a number designating the serotype, e.g., DAdV-2 for duck adenovirus 2.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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