- OSPAR Convention
- Regulus
- Ocean thermal energy
- Organic Pollution
- Confidentiality
- Acne
- Magma chamber
- Unknown
- Eusocial
- Shiga toxin
- Exoprosthesis
- Mollusc
- To iconise
- Nucleoside triphosphate
- Biopiracy
- Bhopal disaster
- Coanda effect
- Canada-France-Hawaii observatory
- Blood pressure
- Homeotherm
- Caruncle
- Bandwidth
- Olfactory centres
- Zoophage
- Greisen
- Diastole
- Shoemaker-Levy 9 comet
- Microprocessor
- DOUBLE STAR
- Standard model