hieroglyphic /ˌhaɪɹəˈɡlɪfɪk/noun 3adjective 2forms 3 noun3 •[in the plural] A writing system of ancient Egypt, Minoans, Maya and other civilizations, using pictorial symbols to represent individual sounds, often as a rebus. •Any symbol used in this system; a hieroglyph.The hieroglyphics or symbols, however, were reversed, just as though they had been pressed on wax. — 1886 •Undecipherable handwriting or secret symbol. adjective2 •Of, relating to, or written with such a system of symbols.'Is there any meaning, do you think?' 'That little arrangement comes in more than once,' said Elsie, indicating a hieroglyphic twist. 'I'm sure it must mean something.' — 1927 •Difficult to decipher. formshieroglyphics · more hieroglyphic · most hieroglyphic