› ten; used in
forming
nouns
:
decathlon
(= a
sports
competition
with 10
events
) decahedron (= a
shape
with 10
faces
) › specialized (also deka-) science ten
times
the
stated
unit
: a decapascal a decametre

(Definition of deca- prefix from the Cambridge Advanced Learner's Dictionary & Thesaurus
© Cambridge University Press)

Focus on the pronunciation of deca-
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