Word.ws English Dictionary

a-aa

a-aa is the alternative form of aa.

Meaning of aa

Noun

aa (uncountable)

  1. A form of lava flow associated with Hawaiian-type volcanoes, consisting of basaltic rock, usually dark-colored with a jagged and loose, clinkery surface. Compare pahoehoe.
    • We...saw ‘pahoihoi’ or solid lava forming, and also ‘aa’ or clinkers.1859, R. C. Haskell, American journal of science and arts, series XXVIII

See all 13 meanings of aa

Questions about a-aa

What is a-aa the alternative form of?
A-aa is the alternative form of aa.

Words near a-aa in the dictionary

  1. A-68
  2. A-6s
  3. A-7
  4. A-7s
  5. a-a
  6. a-aa
  7. a-alike
  8. a-alikes
  9. A-B loop
  10. A-B loops
  11. A-B power

Source and license

Adapted from Wiktionary: a-aa (page history and authors); aa (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “a-aa.” Word.ws, https://word.ws/a-aa. Based on Wiktionary, CC BY-SA 4.0.