Research, Development
| and
| Engineering
| Research & Development | |
| abbr. scottish | R&D |
| AND | |
| abbr. auto. | and circuit |
| abbr. avia. | army/navy drawing |
| abbr. IT | Logical AND; any day now |
| abbr. med. | Allow Natural Death |
| abbr. mil. | alphanumeric display |
| abbr. oil | Advanced Digital Network; alphanumerical display; Andorra |
| Engineering | |
| energ.ind. abbr. | Combustion |
| univer. abbr. | M |
| engineering | |
| abbr. mining. | engg.; engin; engng |
| abbr. O&G, sakh. | eng'g; engrg |
| |||
| R&D | |||
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Research, Development : 1 phrase in 1 subject |
| Military | 1 |