noun
rotary snowplow
A vehicle equipped with a large rotating blade for clearing heavy snow, often used on railways or mountain roads.
豪雪地帯ではロータリー車が活躍する。
Rotary snowplows are active in heavy-snow regions.
除雪車 is a general term for snow-removal vehicles, while ロータリー車 specifically refers to the rotary type.
Compound of ロータリー (rotary) and 車 (vehicle).