1. A unit measuring the amount of cloud cover, corresponding to one eighth of the sky

Derived forms: oktas

Encyclopedia: Okta

• spew
• spew out
• spewer
• SPF
• sphacelate
• Sphacele
• Sphacele calycina
• Sphacelotheca
• Sphacelotheca reiliana
• sphacelus
• Sphaeralcea
• Sphaeralcea coccinea
• Sphaeralcea fasciculata
• Sphaeralcea remota
• Sphaeriaceae
• Sphaeriales
• Sphaerobolaceae
• Sphaerocarpaceae
• Sphaerocarpales
• Sphaerocarpos
• Sphaerocarpus
• Sphagnales
• sphagnous
• sphagnum
• sphagnum moss