noun-modifying (irregular)
splash-proof
Describes products or materials designed to resist splashing liquids, often used in technical or product descriptions.
この時計は防沫仕様です。
This watch is splash-proof.
防水 means 'waterproof', offering stronger protection against water immersion, while 防沫 is specifically 'splash-proof'.
Compound of 防 (ぼう, 'prevent') and 沫 (まつ, 'splash, foam').