susceptor noun2 •A material used for its ability to absorb electromagnetic energy and convert it to heat, used in industrial heating and cooking. •One who undertakes anything; specifically, a godfather; a sponsor; a guardian.I had given me the name of my grandfather, my mother's father, who, together with a sister of Sir Thomas Evelyn of Long-Ditton, and Mr. Comber, a near relation of my mother, were my susceptors. — 1641 formssusceptors