sepulcrum Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. the opening in the altar stone into which the relics of the two martyrs must be places before the altar can be consecrated Example Sentence The Bishop places the hair of the saint in the sepulcrum. Synonyms grave; burial; tomb Antonyms unholy Hear It! Say It! Write It! sepulcrum Switch to cursive Start Share with your friends: