a brand name for an instrument, similar to a hypodermic syringe, but using no needle, for forcing extremely fine jets of a solution through the unbroken skin.
Main Entry: Hy·po·spray Pronunciation: 'hI-pO-"sprA Function: trademark —used for a device with a spring and plunger for administering a medicatedsolution by forcing it in extremely fine jets through the unbroken skin
[hahy-poh-sprey] 
poʊˌspreɪ