Whiskers, also known as vibrissae (/ vəˈbrɪsi /; sg. vibrissa; / vəˈbrɪsə /) are a type of stiff, functional hair used by most therian mammals to sense their environment. [1] . These hairs are finely specialised for this purpose, whereas other types of hair are coarser as tactile sensors. Discover the meaning of Whisker, explore its usage in everyday language, popular idioms, and fun facts that make this word fascinating. Perfect for learners and curious minds! Online shopping for Home & Kitchen from a great selection of Tableware, Kitchen Tools, Kitchen Storage & Containers, Bakeware, Cookware, Gas Stoves & more at everyday low prices. The meaning of WHISKER is a hair of the beard. How to use whisker in a sentence.