semicircular

«semicircular» in Mova's school dictionary: Shaped like half a circle — its meaning for a pupil, its sense in the lessons and examples.

part of speech

adjective (semicircular)

meaning for a pupil

Shaped like half a circle. tree →

sense in the lessons

In maths it describes shapes and arcs; to find the area of a semicircular shape, find the area of the whole circle and halve it. In science, the «semicircular canals» in the inner ear help you balance. In everyday life it describes windows, tables or rows of chairs. Phrases: «semicircular shape», «semicircular canals», «semicircular arch».

examples

• We sat in a semicircular row around the teacher. tree →
• The church has a semicircular window over the door. tree →
• Find the area of the semicircular garden. tree →
• The semicircular canals in your ear help you keep your balance. tree →
• Romans built semicircular arches. tree →
• The rainbow made a semicircular shape across the sky. tree →

note

«Semi-» means half. Maths: area of a semicircle = half of π × radius × radius; the perimeter of a semicircle is half the circumference plus the diameter (the straight edge) — a common trap is forgetting the diameter.

Trees and pragmatics

Every meaning and example of «semicircular» parsed by Mova, each sentence with its dependency tree and frames.