Meaning of ARC in English

ARC

[ α :k ]

■ noun

1》 a curve forming part of the circumference of a circle or other figure.

↘a curving trajectory.

↘[as modifier ] Mathematics indicating the inverse of a trigonometrical function: ~ cosine.

2》 a luminous electrical discharge between two points.

■ verb ( ~s , ~ing 'α:kɪŋ , ~ed α:kt )

1》 move with a curving trajectory.

2》 [as noun ~ing ] the forming of an electric ~.

Origin

ME: via OFr. from L. ~us 'bow, curve'.

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.