Dictionary

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

1. (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

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)

aa en · ADJ · etymology 2

Etymology

Abbreviation.

Meanings

1. (abbreviation, alt-of, initialism, not-comparable) Initialism of arctic-alpine.
   alt of arctic-alpine
2. (abbreviation, alt-of, initialism, not-comparable) Initialism of always afloat.
   alt of always afloat

aa en · NOUN · etymology 2

Etymology

Abbreviation.

Meanings

1. (abbreviation, alt-of, initialism) Initialism of acetic acid.
   alt of acetic acid
2. (abbreviation, alt-of, initialism) Initialism of acting age.
   alt of acting age
3. (abbreviation, alt-of, initialism) Initialism of alveolar-arterial.
   alt of alveolar-arterial
4. (abbreviation, alt-of, initialism) Initialism of aminoacetone.
   alt of aminoacetone
5. (abbreviation, alt-of, initialism) Initialism of amino acid.
   alt of amino acid
6. (abbreviation, alt-of, initialism) Initialism of approximate absolute.
   alt of approximate absolute
7. (abbreviation, alt-of, initialism) Initialism of arachidonic acid.
   alt of arachidonic acid
8. (abbreviation, alt-of, initialism) Initialism of armature accelerator.
   alt of armature accelerator
9. (abbreviation, alt-of, initialism) Initialism of ascending aorta.
   alt of ascending aorta
10. (abbreviation, alt-of, initialism) Initialism of atomic absorption.
    alt of atomic absorption
11. (abbreviation, alt-of, initialism) Initialism of author's alteration.
    alt of author's alteration
12. (abbreviation, alt-of, initialism) Initialism of average audience.
    alt of average audience

aa en · NOUN · etymology 3

Etymology

Compare pp.

Meanings

1. (abbreviation, alt-of, plural, plural-only) Abbreviation of adjectives.
   alt of adjectives
2. (abbreviation, alt-of, plural, plural-only) Abbreviation of arteries.
   alt of arteries

aa en · ADJ · etymology 4

Etymology

Contraction.

Meanings

1. (abbreviation, alt-of) Abbreviation of ana (“of each, equal parts”).
   alt of ana

aa en · PRON · etymology 5

Meanings

1. (Northumbria, personal) I.