| TA | abnormally rapid heartbeat (over 100 beats per minute) |
|---|---|
| TA | echidnas |
| TA | type genus of the family Tachyglossidae |
| TA | a basic or basalt glass |
| TA | a theodolite designed for rapid measurements |
| TA | a genus of Limulidae |
| TA | indicated by necessary connotation though not expressed directly |
| TA | (law) tacit approval of someone's wrongdoing |
| TA | in a tacit manner |
| TA | habitually reserved and uncommunicative |
| TA | the trait of being uncommunicative |
| TA | without speaking |