n.

1. 量滴（液量最小单位）
2. 一滴；微量；微小物
3. 【音】二分音符

n.

1. Music,  Brit. a note having the time value of two crotchets or half a semibreve, represented by a ring with a stem.
2. a small bronze or silver ancient Roman coin.
3. one sixtieth of a fluid drachm, about one drop of liquid.
4. (in calligraphy) a short vertical stroke, as in the letters i, m, n, u.