視し線せん速そく度どMeaningsNoun1. radial velocity; line-of-sight velocityKanji used視look at線line速fast度degreesPitch accentしせんそくどComposed of視し線せんone's line of sight; one's gaze; one's eyes (looking); glance; gaze; lookNoun速そく度どspeed; velocity; pace; rateNoun