decad

About 0.05 uses per million words.

Meaning

1. noun Archaic form of decade (“period of ten years”).
2. noun Archaic form of decade (“group of ten”).
3. noun A group of ten notes from which the consonant triads may be constructed

Similar words

decadation heptadecad decachord duodecet decet duodene quindecima undecet decuplet decima

Often followed by

of is and in which on