DULL v.
To make dull, stupid, or sluggish; to stupefy, as the senses, the feelings, the perceptions, and the like. Those [drugs] she has Will stupefy and dull the sense a while. Shak. Use and custom have so dulled our eyes. Trench.
EAR n.
nd, and narrowing to a slender extremity which enters the ear, thus collecting and intensifying sounds so as to assist the hearing of a partially deaf person. -- Ear vesicle (Zoöl.), a simple auditory organ, occurring in many worms, mollusks, etc. It consists of a small sac containing a fluid and one or more solid con…