丸まる瓦がわらまるがわらMeanings1nounconvex roof tileA semicylindrical tile used in traditional Japanese roofing, often paired with a concave tile (平瓦).See also: 平瓦このお寺てらの屋や根ねには丸まる瓦がわらが使つかわれている。Convex roof tiles are used on the roof of this temple.