- Optical doublet
- Grained rock
- Celeriac
- Outer ear
- Catalpa
- Aqua
- Skipjack
- Caries
- Enteric fever
- London plane tree
- Light pen
- Arginine
- Crest
- Discrete logarithm
- Bure laboratory
- Blennorragia
- Eclipse of the Moon
- HELIOS II
- Filter
- Work hardening
- Ligo
- Ping
- Geoengineering
- Interleukin
- ATM
- Solar panel
- Ribonucleoside
- Ecosystem
- Hubble's law
- Fibrate