Deca- (prefix)

Deca- (and dec-) sometimes deka- is a common English-language numeral prefix derived from the Late Latin decas ("(set of) ten"), from Ancient Greek δέκας (dékas), from δέκα (déka, "ten").[1] It is used in many words.

Look up deca-, deka-, or dec- in Wiktionary, the free dictionary.

General

Decathlon, a combined event in athletics consisting of ten track and field events.
Decennial, ten-yearly or a celebration of ten years.

Mathematics

Decimal based on the number ten.
Decagon a plane figure with ten sides
Decahedron a polyhedron with ten faces

Chemistry

Decane, a hydrocarbon with 10 carbon atoms

Biology

Decapoda, an order of crustaceans with ten feet

Religion

The Decalogue, the Ten Commandments

See also

Deca-, use in the SI system

References

Chambers Twentieth Century Dictionary. 1979. p. 332.

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