• (n.) A writer of hierograms; also, one skilled in hieroglyphics.
Hi`er·o·gram'ma·tist noun [ Confer French hiérogrammatiste .] A writer of hierograms; also, one skilled in hieroglyphics. Greenhill. 
hierogrammatist A writer of hierograms; also, one skilled in hieroglyphics. This ancient Egyptian hieroglyph, the symbol of the Egyptian scribe, will take you to an explanation of hieroglyphs for a greater understanding of these special writing symbols. Related religious-word units: church;...