粒りゅう子し線せんMeaningsNoun1. particle beamKanji used粒a single grain子child線linePitch accentりゅうしせんComposed of粒りゅう子しparticle; grainNoun線せんline; stripe; stria; line (e.g. telephone line); wire; ray (e.g. X-ray); beam; line (e.g. of a railroad); track; route; …Noun