1.1
- (in genealogies) daughter.（家谱）同DAUGHTER.
1.2
- day(s).同DAY或days:
orbital period (Mars): 687.0d.
（火星）轨道周期： 687.0天。
1.3
- in combination(in units of measurement) deci-.（度量单位）同DECI-.
1.4
- (in travel timetables) departs.（旅行时刻表）同departs.
1.5
d.
died (used to indicate a date of death).表示死亡日期同died:Barents, Willem (d. 1597).
巴伦支, 威廉（卒于1597年）。
1.6
- Brit. penny or pence (of pre-decimal currency).
£20 10s 6d.
20英镑10先令6便士。
ORIGIN: from Latin denarius 'penny'.
1.7
- Chemistry denoting electrons and orbitals possessing two units of angular momentum【化】（电子, 轨函数）双角动量的：
d-electrons.
双角动量电子。
ORIGIN: d from diffuse, originally applied to lines in atomic spectra.
1.1
- Mathematics diameter【数】直径。
1.2
- Mathematics denoting a small increment in a given variable【数】微分：
dy/dx.
函数y的微分与函数x的微分之比。