aa en · NOUN · etymology 1
Pronunciation
- [ˈɑː.ʔɑː] (Received-Pronunciation)
- äʹä (Received-Pronunciation)
- /ˈɑː.ɑː/ (Received-Pronunciation)
- /ˈɑ.ɑ/ (General-American)
- (Southern-England) audio
- [ˈɑ.ʔɑ] (General-American)
Etymology
Etymology tree Proto-Polynesian *kaha Proto-Polynesian *kakaha Hawaiian ʻaʻābor. English aa Borrowed from Hawaiian ʻaʻā.
Meanings
-
(uncountable) 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:Cooling and solidification frequently takes a different course [...] in lava flows, producing the clinker-like ‘aa’ lava.
1944, Charles A. Cotton, Volcanoes as landscape forms:Both pahoehoe and aa lava flows are common on the upper slopes of Mauna Loa with a preponderance of aa flows found at the lower elevations.
1981, Hilo Lava Flood Control: Environmental Impact Statement, page 194:
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| 'a'a | alternative | lexicographic | |
| a-aa | alternative | lexicographic | |
| 'a'ā | alternative | lexicographic | |
| a aa | alternative | lexicographic | |
| a'a | alternative | lexicographic | |
| a-a | alternative | lexicographic |
Translations (13)
is apalhraun (a form of lava flow associated with Hawaiian-type volcanoes) · it àa (a form of lava flow associated with Hawaiian-type volcanoes) · da apalhraun (a form of lava flow associated with Hawaiian-type volcanoes) · et aa-laava (a form of lava flow associated with Hawaiian-type volcanoes) · nl scherpe lava (a form of lava flow associated with Hawaiian-type volcanoes) · fi aa-laava (a form of lava flow associated with Hawaiian-type volcanoes) · de Brockenlava (a form of lava flow associated with Hawaiian-type volcanoes) · de Aa-Lava (a form of lava flow associated with Hawaiian-type volcanoes) · af aälawa (a form of lava flow associated with Hawaiian-type volcanoes) · ga aa (a form of lava flow associated with Hawaiian-type volcanoes) · fo bøklalava (a form of lava flow associated with Hawaiian-type volcanoes) · haw ʻaʻā (a form of lava flow associated with Hawaiian-type volcanoes) · ko 아아 (a form of lava flow associated with Hawaiian-type volcanoes)