1. Objects from real life or from the real world, as opposed to theoretical constructs or fabricated examples, esp. when used as teaching aids

Encyclopedia: Realia

• radiant energy
• radiant flux
• radiant heating
• radiantly
• radiate
• radiating
• radiatio optica
• radiation
• radiation diagram
• radiation field
• radiation pattern
• radiation pressure
• radiation pyrometer
• radiation sickness
• radiation syndrome
• radiation therapy
• radiative
• radiator
• radiator cap
• radiator grille
• radiator hose
• radical
• radical cell
• radical chic
• radical hysterectomy