1. Plural of folium; a leaf or leaf-like part of a plant.
Usage: botanical term; Latin plural form sometimes used in scientific contexts
2. In mathematics, a curve of a specific algebraic form, often studied in coordinate geometry.
Usage: mathematics; technical

Examples

• The botanist examined the foliums under the microscope to identify the species.
• In calculus class, we studied the properties of the folium curve.
• The foliums of the plant displayed a distinctive pattern of veins.
• Descartes' folium is a famous example in algebraic geometry.