déca

Déca refers to a prefix meaning ten, derived from the Greek word "deka". This prefix is commonly used in various scientific and measurement systems to denote a multiple of ten. For instance, in the metric system, a decameter is equal to ten meters, and a decagram is equal to ten grams. This usage allows for the convenient representation of larger quantities by grouping them in units of ten.

The prefix "déca" also appears in less common contexts. For example, in chemistry, a decahydrate is a crystalline compound that contains ten molecules of water of crystallization per molecule of the compound. In music, a decachord is a stringed instrument with ten strings. The concept of "ten" is fundamental across many disciplines, and the prefix déca provides a standardized way to express this relationship. Its consistent application facilitates clear communication and understanding in diverse fields, from everyday measurements to specialized scientific nomenclature.