<cell biology> The highly contractile part of a cells cytoplasm. ... (09 Oct 1997) ... 
Type: Term Pronunciation: ki-nē′tō-plazm Definitions: 1. The most contractile part of a cell. 2. The cytoplasm of the droplet that covers the sperm head during maturation. Synonyms: cinetoplasm, cinetoplasma, kinoplasm