prism
UK: ˈprɪzəm | US: ˈprɪzəm
n. a transparent optical element with flat, polished surfaces that refract light, often dispersing it into a spectrum
n. a geometric solid with two parallel polygonal bases and rectangular faces
n. (figuratively) something that reveals or distorts perceptions (e.g., "viewed through the prism of history")
The word "prism" originates from the Greek prisma ("something sawn"), derived from prizein ("to saw"). This reflects the geometric shape’s resemblance to a sawn-off block. The term was adopted into Late Latin as prisma and later into Middle French before entering English in the 16th century, retaining its original association with angular light-refracting objects.
Light passing through a prism splits into a rainbow of colors.
The scientist used a glass prism to demonstrate spectral dispersion.
The building’s design featured a towering prism-like structure.
Her analysis provided a prism through which to understand the cultural shift.
Quartz crystals often form natural prisms with hexagonal bases.