d

abbreviation

1》 (in genealogies) daughter.

2》 day(s).

3》 deci-.

4》 (in travel timetables) departs.

5》 (d.) died (used to indicate a date of death).

6》 Brit. penny or pence (of pre-decimal currency). [from L. denarius 'penny'.]

7》 Chemistry denoting electrons and orbitals possessing two units of angular momentum. [d from diffuse, orig. applied to lines in atomic spectra.]

symbol

1》 Mathematics diameter.

2》 Mathematics denoting a small increment in a given variable.