糸いと遊ゆういとゆうMeanings1nounshimmering of hot air; heat hazeA poetic or literary term for the shimmering appearance of heated air, similar to 陽炎 (かげろう). Rare in everyday speech.夏なつの野の原はらに糸いと遊ゆうが立たつ。A heat haze shimmers over the summer field.