ait

noun

1. An island in a river, especially the River Thames in England.

   “The ait where the osiers grew.”

   “‘[H]e the said seigneur, in quality of Lord Paramount, is to all intents and purposes invested with the sole right and property of the river running through his fief, together with […] all the islands and aits within it.’”

   “1833, Johann Wolfgang von Goethe, Autobiography: Truth and Fiction Relating to My Life trans. John Oxenford, book 9, Striking richness of vegetation which follows in the windings of the Rhine, marks its banks, islands, and aits.”

   “Fog everywhere. Fog up the river, where it flows among green aits and meadows.”

2. (Scotland)An oat.

   “Let husky wheat the haughs adorn, An' aits set up their awnie horn,”

3. (abbreviation, alt-of, countable, initialism, uncountable)Initialism of alloimmune thrombocytopenia: a too-low number of platelets in the blood, especially of a newborn or fetus, due to alloimmunity.
4. (abbreviation, alt-of, countable, initialism, uncountable)Initialism of allergen immunotherapy.
5. (abbreviation, alt-of, countable, initialism, uncountable)Initialism of auditory integration training.
6. (abbreviation, alt-of, countable, initialism, uncountable)Initialism of autoignition temperature.

name

1. (abbreviation, alt-of, initialism)Initialism of Austrian Institute of Technology (Austria's largest Research and Technology Organization (RTO)).