deca-

1.
a combining form meaning “ten,” used in the formation of compound words:
decapod.
Also, especially before a vowel, dec-.
Compare deci-, deka
Origin
< Greek deka-, combining form of déka ten; cognate with Latin decem
British Dictionary definitions for deca-

deca-

prefix
1.
denoting ten: decagon. In conjunction with scientific units the symbol da is used
Word Origin
from Greek deka
Word Origin and History for deca-

before a vowel, dec-, word-forming element meaning "ten," from Latinized comb. form of Greek deka "ten" (see ten). In the metric system, "multiplied by ten;" while deci- means "divided by ten."

deca- in Medicine

deca- or dec- or deka- or dek-
pref.
Ten: decane.

deca- in Science
deca-  
A prefix that means "ten," as in decahedron, a polygon having ten faces.