IPA: //ˈslɪtlaɪk//
KK: /slɪtlaɪk/
Having a shape or appearance similar to a narrow opening or cut.
The slitlike opening in the rock allowed light to filter through.
Slitlike → It is formed from "slit" (from Old English "slitan", meaning to split or tear) and "-like" (meaning resembling or similar to). The word "slitlike" describes something that resembles or has the characteristics of a slit.
Think of something that is 'split' ('slit') and resembles that shape — that's what 'slitlike' means.