1. (しばしば低空飛行の飛行機から)成長期の穀物に殺菌剤や殺虫剤や肥料を散布すること(the dispersion of fungicides or insecticides or fertilizer on growing crops (often from a low-flying aircraft))
2. 噴霧器から粒状の液体を吹き付けること(the application of a liquid in the form of small particles ejected from a sprayer)
3. 空気中を舞う小量の物質(a quantity of small objects flying through the air)