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Definition of AT
1. Noun. A highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium.
2. Noun. 100 at equal 1 kip in Laos.
Definition of AT
1. prep. Primarily, this word expresses the relations of presence, nearness in place or time, or direction toward; as, at the ninth hour; at the house; to aim at a mark. It is less definite than in or on; at the house may be in or near the house. From this original import are derived all the various uses of at.
Definition of AT
1. Initialism. (software) (initialism of assistive technology) ¹
2. Initialism. (military) (initialism of anti-tank) ¹
3. Initialism. (US Navy) (initialism of Auxiliary tugboat Tugboat) ¹
4. Preposition. In or very near a particular place. ¹
5. Preposition. (qualifier indicating time) Simultaneous. ¹
6. Preposition. In the direction of (often in an unfocused or uncaring manner). ¹
7. Preposition. Occupied in (activity). ¹
8. Preposition. (non-gloss definition Indicates a position on a scale or in a series.) ¹
9. Preposition. ¹
10. Noun. the @ symbol. ¹
¹ Source: wiktionary.com
Definition of AT
1. in the position of [prep]
Medical Definition of AT
1.