a-a
adj 2noun 1
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1A-A + NOUN
gradient
Definitions
noun
1
Alternative form of aa.
The second form of the lavas is called by the natives a-a, and its contrast with pahoehoe is about the greatest imaginable. It consists mainly of clinkers sometimes detached, sometimes partially agglutinated together with a bristling array of sharp, jagged, angular fragments.
adj
1
Abbreviation of air-to-air.
adj
1
Initialism of alveolar-arterial.
A-a gradient
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201
The second form of the lavas is called by the natives a-a, and its contrast with pahoehoe is about the greatest imaginable. It consists mainly of clinkers sometimes detached, sometimes partially agglu
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A-a gradient
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