[ ah-ah ]
/ ˈɑ ɑ /
basaltic lava having a rough surface.
QUIZ TIME: TEST YOUR MEMORY OF THE MAY 2020 WORDS OF THE DAY
Let the aeolian gusts transport you back to these popular Words of the Day from the month of May. How many do you remember?
Question 1 of 10
Which of the following words means “to travel or journey, especially to walk on foot”?
Origin of aa
First recorded in 1855–60, aa is from the Hawaiian word ʿaʿā
Definition for aas (2 of 3)
Fellow of the American Academy.
Origin of A.A.S.1
From the New Latin word Academiae Americanae Socius
Definition for aas (3 of 3)
American Academy of Sciences.
Associate in Applied Science.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for aas
The communications between members of AQIM and AAS were important.Intercepts Show Attackers on U.S. Consulate in Benghazi Bragged to Al Qaeda|Eli Lake|September 28, 2012|DAILY BEAST
This clatter excepted and a few magnificent pairs of velvet breeches, the festival was the same as that at Aas.A Tour Through The Pyrenees|Hippolyte Adolphe Taine
British Dictionary definitions for aas (1 of 3)
/ (ˈɑːɑː) /
a volcanic rock consisting of angular blocks of lava with a very rough surface
Word Origin for aa
British Dictionary definitions for aas (2 of 3)
British Dictionary definitions for aas (3 of 3)
(in Britain) Automobile Association
(in Britain) Advertising Association
(in Britain, formerly) a film that may not be shown publicly to a child under fourteen
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for aas
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for aas
[ ä′ä ]
A type of lava having a rough, jagged surface. It is relatively slow moving in its molten state, advancing in the form of massive blocks with fissured and angular surfaces that ride on a viscous interior. The blocks range in size between the size of a football and the size of a house. See Note at pahoehoe.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.