RAPHIDES
- any of the needle-shaped crystals usually of calcium oxalate that develop as metabolic by-products in plant cells
- acicular crystals, usually composed of calcium oxalate, that occur in bundles in the cells of many plants
- RAPHIS, a needle-shaped crystal occurring in plant cells, also RAPHIDE [n]
- RAPHIDE, a needle-shaped crystal occurring in plant cells [n] / RAPHIS, raphide (a needle-shaped crystal occurring in plant cells) [n]