| Word | Definitions | Synonyms |
|---|---|---|
| cps | (noun) the unit of frequency; one hertz has a periodic interval of one second (named for Heinrich Rudolph Hertz) | Synonyms: cycle, cycle per second, cycles/second, hertz, Hz |
| ecphonesis | (noun) an exclamatory rhetorical device | Synonyms: exclamation |
| secpar | (noun) a unit of astronomical length based on the distance from Earth at which stellar parallax is 1 second of arc; equivalent to 3.262 light years | Synonyms: parsec |