callosity/kæ.ˈlɑ:.sɪ.ti/复数形式callosities1胼胝, 老茧an area of skin that is thick or hard from continual pressure or friction (as the sole of the foot)同义词： callus2情感迟钝, 铁石心肠the quality of being emotionally insensitive同义词： callousnesshardnessinsensibilityunfeelingness