| Answer | Crossword Clue |
|---|---|
| MINIM | One sixtieth of a dram. |
| NSEC | One billionth of one sixtieth of a min. |
| arcmin | an angular measure, one sixtieth of a degree |
| arcmins | ARCMIN, an angular measure, one sixtieth of a degree |
| arcsec | an angular measure, one three hundred and sixtieth of a degree |
| arcsecs | ARCSEC, an angular measure, one three hundred and sixtieth of a degree |
