Japanese

Noun

ライダー ‎(romaji raidā)

1. a rider, someone who rides
2. (more specifically) a motorcycle rider

Etymology 2

Borrowing from English LIDAR.

Noun

ライダー ‎(romaji raidā)

1. LIDAR

References

1. 1 2 2006, 大辞林 (Daijirin), Third Edition (in Japanese), Tōkyō: Sanseidō, ISBN 4-385-13905-9