rd

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rd^¹

noun rds · rd.

abbreviation Abbreviation of road
symbol Symbol for rad (unit of measure for absorbed dose of radiation). Near-synonym: cGy (same physical quantity)
Similar: mul:cGy
abbreviation Abbreviation of round

RD^²

noun RDs

abbreviation, countable, initialism, uncountable Initialism of red dwarf
US, abbreviation, countable, initialism, uncountable Initialism of restricted data Under these restrictions, the only way for nuclear information that had been classified as RD to be controlled under UCNI is for the information to be declassified and then for circumstances to change such that the information becomes sufficiently sensitive to warrant reassertion of some degree of c
US, abbreviation, initialism, uncountable Initialism of rural delivery, formerly used when addressing mail.
abbreviation, countable, initialism, uncountable Initialism of registered dietitian
abbreviation, countable, uncountable Abbreviation of right defence/defense: the right wing player defensive position.
US, abbreviation, countable, initialism, uncountable Initialism of reporting district
abbreviation, countable, initialism, uncountable Initialism of restrictive dermopathy

Rd^³

noun

abbreviation, as part of road names Abbreviation of Road A reception will be held on Sunday at the Smith residence, 234 Stone Hollow Rd, Barringtonville.

Thesaurus

Closest in meaning: ot, yee, street, avenue, boulevard, lane, drive, highway, route, way, roadway, path, thoroughfare, expressway, freeway, turnpike

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MLA

"rd." Wiktionary, via Micwyn, micwyn.com/word/rd. Accessed 6 Nov. 2026.

APA

rd. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/rd

Chicago

"rd." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/rd.

BibTeX

@misc{rd_2026,
  title = {rd},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/rd},
  urldate = {2026-11-06}
}

rd