R & D

1 of 4

abbreviation (1)

research and development

rd

2 of 4

abbreviation (2)

1
road
2
rod
3
round

RD

3 of 4

abbreviation (3)

1
registered dietitian
2
rural delivery

-rd

4 of 4

symbol

used after the figure 3 to indicate the ordinal number third
3rd
83rd

Dictionary Entries Near R & D

Cite this Entry

“R & D.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/R%20%26%20D. Accessed 27 Dec. 2024.

Kids Definition

-rd

symbol
used after the figure 3 to indicate the ordinal number third
3rd
63rd

Medical Definition

rd

1 of 2 abbreviation
rutherford

RD

2 of 2 abbreviation
1
reaction of degeneration
2
registered dietitian
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