granular endoplasmic reticulum

(redirected from chromidial substance)

gran·u·lar en·do·plas·mic re·tic·u·lum

endoplasmic reticulum in which ribosomes are located on the cytoplasmic surface of the cisternae; involved in the synthesis of protein destined to be transported via membrane-bound vesicles to the extracellular space.

granular endoplasmic reticulum

gran·u·lar en·do·plas·mic re·tic·u·lum

(gran'yū-lăr en'dō-plaz'mik rĕ-tik'yū-lŭm)
Endoplasmic reticulum in which ribosomal granules are applied to the cytoplasmic surface of the cisternae; involved in the synthesis and secretion of protein through membrane-bound vesicles to the extracellular space.
Synonym(s): ergastoplasm.