RAPHIDES is validvalid

RAPHIDE, a needle-shaped crystal occurring in plant cells [n] / RAPHIS, raphide [n]

79,020 of 196,601 in NWL2023·also valid in CSW24

RAPHIS, (Greek) a needlelike crystal, usually of calcium oxalate, occurring in plant cells, also RAPHIDE, RHAPHIDE, RHAPHIS [n]