# deca- [DEK uh], dec-, deka-, dek-

#### (Greek: ten; a decimal prefix used in the international metric system for measurements)

In the metric [decimal] system, **deka**- is used to show whole units: ten [U.S.] and tenfold [U.K.]; 10^{1} [10]. The metric symbol for **deka**- is **da**.

decachord

1. An ancient Greek musical instrument of ten strings, resembling the harp.

2. Something consisting of ten parts; for example, a bundle consisting of ten things bound together.

2. Something consisting of ten parts; for example, a bundle consisting of ten things bound together.

1. A period of ten years; especially, one beginning with a year that ends in a "0", for example 2000 through 2999: "One hundred years is equal to ten decades and one decade is equal to ten years."

2. A group, set, or series of ten.

2. A group, set, or series of ten.

decagon

decagonal

decagram

1. A unit of weight equal to ten grams.

2. A metric unit of mass equal to 10 grams (dkg).

2. A metric unit of mass equal to 10 grams (dkg).

decagramme (British)

A weight of the metric system; ten grams, equal to about 154.32 grains avoirdupois.

decahedra

decahedral

decahedron

decahedrous

decaliter

decalitre (British)

Decalog

Decalogue

Decameron