adj. of or pertaining to priests, especially pharaonic priests of ancient Egypt; sacerdotal.adj. of or pertaining to the cursive writing system developed by ancient Egyptian priests alongside the hieroglyphic system.adj. extremely stylized, restrained or formal; adhering to fixed types or methods; severe in emotional import.n. a writing system used in pharaonic Egypt that was developed alongside the hieroglyphic system, primarily written in ink with a reed brush on papyrus, allowing scribes to write quickly without resorting to the time consuming hieroglyphs.