Entry 1 sense Webster, 1913 Blender /blĕn'-dẽr/ · Blend·er · IPA /ˈblɛn.dɚ/ 01 n. One who, or that which, blends; an instrument, as a brush, used in blending. 1. One who, or that which, blends; an instrument, as a brush, used in blending.