any of various small particles in the cytoplasm of the cells of plants and some animals that contain pigments, starch, oil, protein, etc
chromoplast
Word origin
C19: via German from Greek plastēs sculptor, from plassein to form
plastid in American English
(ˈplæstɪd)
noun
any of several specialized protoplasmic structures occurring in the cytoplasm of some plant cells, in whichstarch, oil, protein, pigment, etc. are stored
Word origin
Ger plastiden (pl.) < Gr plastides, pl. of plastis, fem. of plastēs, molder < plassein, to form: see plastic