plural alae ˈā-ˌlē How to pronounce ala (audio)
: a wing or a winglike anatomic part or process (see process entry 1 sense 4)
alar adjective
alary adjective

Word History

Etymology

borrowed from Latin āla "armpit, upper arm, wing, axil" going back to *akslā, going back to Indo-European *h2eḱs-(i)l-eh2- (whence also Germanic *ahslō-, whence Old English eaxl "shoulder," Old Frisian axle, axele "shoulder, armpit," Old Saxon ahsla, Old High German ahsla, ahsala, Old Icelandic ǫxl "shoulder"), derivative with an -l- suffix from *h2eḱs- "pivot around which something rotates, axle" — more at axis

First Known Use

1634, in the meaning defined above

Time Traveler
The first known use of ala was in 1634

Browse Nearby Words

Cite this Entry

“Ala.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ala. Accessed 11 Jun. 2026.

Medical Definition

ala

1 of 3 noun
plural alae -ˌlē How to pronounce ala (audio)
: a wing or a winglike anatomic process or part
especially : ala nasi

Ala

2 of 3 abbreviation
alanine; alanyl

ALA

3 of 3 abbreviation

More from Merriam-Webster on ala

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster