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aa1
See synonyms for aaTranslate aa into Spanish
noun
mass nounGeologyBasaltic lava forming very rough, jagged masses with a light frothy texture.
Often contrasted with pahoehoe‘Roads of black ash traverse it, winding through the otherwise untraversable aa.’- ‘A serpentine flow meanders through formations of smooth pahoehoe lava and rough aa lava, the same forms common in basalt lavas.’
- ‘Very different from jagged aa, pahoehoe is the other general texture of newly solidified lava.’
Origin
Mid 19th century from Hawaiian 'a-'a.
AA2
See synonyms for AATranslate AA into Spanish
abbreviation
1Alcoholics Anonymous.
2Anti-aircraft.
3(in the UK and South Africa) Automobile Association.
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