/oh"dee"/ , n. , pl. ODs or OD's , v. , OD'd or ODed or OD'ed, OD'ing or ODing .
n.
1. an overdose of a drug, esp. a fatal one.
2. a person who has taken an overdose of a drug, esp. one who has become seriously ill or has died from such an overdose.
v.i.
3. to take an overdose of a drug.
4. to die from an an overdose of a drug.
5. to have or experience an excessive amount or degree of something.
[ 1955-60 ]
1. See officer of the day .
2. Old Dutch.
3. Ordnance Department.
4. outside diameter.