水すい平へい尾び翼よくすいへいびよくMeanings1nountailplane; horizontal stabilizerTechnical term in aviation; refers to the small wing at the tail of an aircraft that provides stability in pitch.水すい平へい尾び翼よくは機き体たいの安あん定ていに重じゅう要ような役やく割わりを