Of or relating to the Altai, a mountain chain in Central Asia.

(linguistics) Verner alternation

(Indo-European studies) The alternation between consonants in different forms of a word stem in the Germanic languages, as a result of Verner's law.

A compound that binds to the 5-HT_(2A) receptor in the brain, used as a radioligand when labelled with fluorine-18.

(aviation) The vertical distance between the airplane and the surface below.

plural of alto-rilievo

Alternative form of alto-relievo

(group theory) a group of even permutations of a finite set

plural of altar screen

(law) Abbreviation of Alberta.