- Mangrove
- Rod
- Brood
- Orange dwarf
- American foulbrood
- Agent orange
- Antitussive
- Smoketree
- Thermostable
- Usenet
- Rorqual
- Hemicordulia atrovirens
- Placer
- JPEG
- OPEC
- Paleomagnetism
- Ligo
- RNA polymerase
- Sea ice - New
- Recurrence
- Anadromous
- Scrolling
- Regulation
- Predisposition
- Kelvin's postulate
- Photoperiodism
- Backing block
- Arteriosclerosis
- Gravity
- Brightening