1. Brown algae; mostly marine and littoral eukaryotic algae
   - Phaeophyceae

Type of: class

Part of: division Phaeophyta, Phaeophyta

• omnirange
• omniscience
• omniscient
• omnium-gatherum
• omnivore
• omnivorous
• Omomyid
• Omomyid group
• omophagia
• Omotic
• omphalocele
• omphalos
• omphaloskepsis
• Omphalotus
• Omphalotus illudens
• omphalus
• Omsk
• on
• on a higher floor
• on a lower floor
• on a regular basis
• on a roll
• on air
• on all fours
• on an individual basis