OD (uncountable)

Initialism of overdose.

Initialism of oculus dexter, the right eye.

(professional degree) Initialism of Doctor of Optometry.

Initialism of overdrive.

Initialism of overdraft.

Initialism of optical density.

(of a pipe or tube) Initialism of outer diameter.

(Australia, on road signs) Initialism of over dimension, used on route numbers for large vehicles, and normally followed by a numeral, eg. OD5.

(management) Initialism of Organization development.


OD (third-person singular simple present OD's or ODs, present participle OD'ing or OD-ing or ODing, simple past and past participle OD'ed or OD'd or ODed)

(informal) To take an overdose of a drug, to overdose.


• D&O, D.O., DO, d/o, do, do.

Etymology 1

Alteration of God.



(archaic except in dialects) God

Etymology 2

An arbitrary coinage.



(archaic) An alleged force or natural power, supposed, by Reichenbach and others, to produce the phenomena of mesmerism, and to be developed by various agencies, as by magnets, heat, light, chemical or vital action, etc.

Synonyms: odyle, odyl


• D&O, D.O., DO, d/o, do, do.

Source: Wiktionary


Word of the Day

2 February 2023


(noun) European strong-scented perennial herb with grey-green bitter-tasting leaves; an irritant similar to poison ivy

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Coffee Trivia

In 1511, leaders in Mecca believed coffee stimulated radical thinking and outlawed the drink. In 1524, the leaders overturned that order, and people could drink coffee again.

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