| English noun: time constant | |||
| 1. | time constant (time) (electronics) the time required for the current or voltage in a circuit to rise or fall exponentially through approximately 63 per cent of its amplitude | ||
| Broader (hypernym) | interval, time interval | ||
| Narrower (hyponym) | relaxation time | ||
| Domain category | electronics | ||
| 2. | time constant the ratio of the inductance of a circuit in henries to its resistance in ohms | ||
| Broader (hypernym) | ratio | ||