Smoke bomb and Smoke-ball

Smoke bomb noun - A bomb that gives off thick smoke when it explodes; used to make a smoke screen or to mark a position.

Smoke-ball and smoke bomb are semantically related. In some cases you can use "Smoke-ball" instead a noun phrase "Smoke bomb".

Smoke bomb and smoke-ball are semantically related. Sometimes you can replace phrase "Smoke bomb" with "Smoke-ball", this phrases are similar.