円えん材ざいえんざいMeanings1nounsparNautical term for a strong wooden or metal pole used as a mast, yard, boom, gaff, etc. on a ship.帆はん船せんの円えん材ざいは、風かぜを受うける帆ほを支ささえる重じゅう要ような部ぶ品ひんだ。The spars of a sailing ship are important components that support the sails catching the wind.
