1d

See also: 1D, 1-D, and 1/d

English

Etymology 1

From 1 + d (“old penny”).

Noun

1d (plural 1ds)

  1. (British, Ireland, historical) Abbreviation of one penny (a coin with the value of 1 pence/penny; 1/240th of a pound, in pre-decimalisation currency, never used for 'one new penny').

Etymology 2

Adjective

1d (comparative more 1d, superlative most 1d)

  1. Initialism of one-dimensional.
Alternative forms
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