superluminal

[ soo-per-loo-muh-nl ]
/ ˌsu pərˈlu mə nl /

adjective Astronomy.

appearing to travel faster than the speed of light.

Origin of superluminal

super- + Latin lūmin-, stem of lūmen light + -al1

British Dictionary definitions for superluminal

superluminal
/ (ˌsuːpəˈluːmɪnəl) /

adjective

physics of or relating to a speed or velocity exceeding the speed of light