| Terms for subject Abbreviation (890987 entries) |
| ATTO | avalanche transit time oscillator | |
| a | atto | |
| atto- | a | |
| A | atto- | |
| aA | attoampere | |
| aF | attofarad | |
| Attogram (10 E^-18, one quintillionth) | AG | Alex Lilo |
| ag | attogram | |
| ATTOL | Autonomous Taxi, Take-оff and Landing | geseb |
| Attoliter (10 E^-18, one quintillionth) | AL | Alex Lilo |
| Attometer (10 E^-18, one quintillionth) | AM | Alex Lilo |
| am | attometer | |
| attorney | att | |
| att | attorney | |
| Att. | attorney | |
| atty | attorney | |
| atty. | attorney | |
| a | attorney | |
| Attorney General | Atty Gen | |
| Attorney General | Att'y Gen. |