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• octa-
  octa-

  a combining form occurring in loanwords from Greek and Latin, where it meant “eight” (octagon; octastyle ), on this model, used in the formation of compound words, and in chemical terms specialized to mean “having eight atoms” (octavalent ).
• octa
  octa

  noun

  a variant spelling of okta

octa-

American  

1. a combining form occurring in loanwords from Greek and Latin, where it meant “eight” (octagon; octastyle ), on this model, used in the formation of compound words, and in chemical terms specialized to mean “having eight atoms” (octavalent ).

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octa ¹ British  

/ ˈɒktə /

noun

1. a variant spelling of okta

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octa- ² British  

combining form

1. a variant of octo-

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Etymology

Origin of octa-

< Greek okta-, combining form of oktṓ eight