coccolite /kokˈō-līt/

1. A variety of pyroxene
2. A small rounded body found in chalk formations, consisting of microscopic plates secreted by extinct algal plankton (also coccˈolith)

• orthotoneses
• orthotonesis
• orthotonic
• orthotopic
• orthotropic
• orthotropies
• orthotropism
• orthotropisms
• orthotropous
• orthotropy
• orthros
• orthroses
• ortolan
• ortolans
• orts
• orval
• orvals
• Orvietan
• Orvieto
• Orwellian
• or whatever
• or whenever
• or wherever
• oryctologies
• oryctology