pyroid adjective 2noun 1forms 1 adjective2 •Having a tapered shape.The females were pyroid in shape, without any neck. — 1979 •Pertaining to noble metals, such as gold and silver. noun1 •Pyrolytic graphite.Both basal-oriented and edge-oriented (basal planes perpendicular to the surface) samples of pyroid were implanted. — 1976 formspyroids
