Main Entry: sty·lus

Variant(s): also sti·lus \ˈstī-ləs\

Function: noun

Inflected Form(s): plural sty·li \ˈstī(ə)l-ˌī\ also sty·lus·es \ˈstī-lə-səz\ or sti·li or sti·lus·es

: an instrument for writing, marking, or incising: as a : a hard-pointed instrument for punching the dots in writing braille with a braille slate b : a device that traces a recording (as of an electrocardiograph) on paper