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saltation
(redirected from Saltations)

   Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.01 sec.
saltation /sal·ta·tion/ (sal-ta´shun)
1. the action of leaping.
2. the jerky dancing or leaping that sometimes occurs in chorea.
4. in genetics, an abrupt variation in species; a mutation.
5. sudden increases or changes in the course of an illness.sal´tatory

sal·ta·tion (sl-tshn, sôl-)
n.
1. The act of leaping, jumping, or dancing.
2. Discontinuous movement, transition, or development; advancement by leaps as of a disease or physiologic function.
3. A single mutation that drastically alters the phenotype.

saltation
[saltā′shən]
Etymology: L, saltare, to dance
a mutation causing a significant difference in appearance between parent and offspring or an abrupt variation in the characteristics of a species. saltatorial, saltatoric, saltatory [sal′tətôr′ē] , adj.

saltation [sal-ta´shun]
1. the action of leaping. 2. the dancing that sometimes accompanies chorea. 3. conduction along myelinated nerves. 4. in genetics, an abrupt variation in species; a mutation. adj., adj sal´tatory.

saltation
1. the action of leaping, as in louping ill or the dancing of porcine myotonia congenita.
2. conduction along myelinated nerves.
3. in genetics, an abrupt variation in species; a mutation.


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On the other side of the coin (and ocean), the Harvard botanist Asa Gray rightly recognized that saltations would mean the demise of the theory of natural selection and vigorously defended Darwin while remaining an orthodox Congregationalist, whereas his great rival at Harvard, the zoologist Louis Agassiz, attacked Origin of Species but abandoned the Calvinist religion of his Swiss homeland and became a Unitarian.
 
 
 
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