AA

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Like stirring a cup of tea, mixing the lava sped up cooling—and seemingly triggered the formation of aa, says study author Cansu Culha, a postdoctoral fellow at the University of British Columbia.

From Science Magazine

But, he added, “it is also hard for them to understand why ‘qi’ and ‘aa’ are words.

From New York Times

Kilauea, by contrast, is a shield volcano: Its magma is relatively low in silica and flows easily, oozing out in characteristic ropy flows called pahoehoe and thick, blocky flows called aa.

From Scientific American

There are two main kinds of lava: pahoehoe and aa.

From Los Angeles Times

First across the black lava flows and broken aa.

From Project Gutenberg