rd

noun — 3 senses

rd

noun

1

Abbreviation Abbreviation of road.

2

Symbol Symbol for rad (unit of measure for absorbed dose of radiation).

Near-synonym: cGy (same physical quantity)

3

Business, Engineering, Firearms, Government, Knitting, Manufacturing, Military, Natural sciences, Physical sciences, Politics, Textiles, Tools, War, Weaponry Abbreviation Abbreviation of round.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.