Saltatory evolution
saltatory evolution n.
The theory that the evolution of a new species from an older one may occur as a large jump, such as a major repatterning of chromosomes, rather than by gradual accumulation of small steps or mutations.
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- Saltatory spasm
saltatory spasm n. A spasmodic affliction of the muscles of the lower extremities that causes a person to appear to jump when standing. Also called static convulsion.
- Salt bath
noun 1. (metallurgy) a bath of molten salts in which steel can be immersed to soak to a uniform and accurately maintained temperature as part of the process of heat treatment. Different salts are used for different temperatures
- Saltbox
noun 1. a box in which salt is kept. 2. a type of house found especially in New England, generally two full stories high in front and one story high in back, the roof having about the same pitch in both directions so that the ridge is well toward the front of the house. noun […]
- Salt-box
noun 1. a box in which salt is kept. 2. a type of house found especially in New England, generally two full stories high in front and one story high in back, the roof having about the same pitch in both directions so that the ridge is well toward the front of the house.
- Saltbush
noun 1. any of various plants or shrubs of the genus Atriplex, having mostly alternate leaves and clusters of inconspicuous flowers, often growing in saline or alkaline soil. noun 1. any of various chenopodiaceous shrubs of the genus Atriplex that grow in alkaline desert regions