n.
Pronunciation: ˌ nü-kl ē - ō - ' pr ō - ˌ t ē n, ˌ nyü-, - ' pr ō -t ē - ə n
Function: noun
Etymology: International Scientific Vocabulary
Date: 1907
: a compound that consists of a protein (as a histone) conjugated with a nucleic acid (as a DNA) and that is the principal constituent of the hereditary material in chromosomes