R & D
1 of 4abbreviation (1)
research and development
rd
2 of 4abbreviation (2)
1
road
2
rod
3
round
RD
3 of 4abbreviation (3)
1
registered dietitian
2
rural delivery
-rd
4 of 4symbol
—used after the figure 3 to indicate the ordinal number third
3rd83rd
Kids Definition
rd.
abbreviation
1
: road
2
: rod
Medical Definition
rd 1 of 2
abbreviation
rutherford
RD
2 of 2abbreviation
1
reaction of degeneration
2
registered dietitian