D defs.my
Entry 1 sense Webster, 1913

firecracker

/fī'-ẽrk-răkˌ-ẽr/ · fire·crack·er · IPA /ˈfaɪəɹˌkɹækəɹ/
01 n. A small explosive device consisting of a paper or cardboard cylinder having only sufficient explosive mixture to make a loud bang, ignited …
  1. 1.
    A small explosive device consisting of a paper or cardboard cylinder having only sufficient explosive mixture to make a loud bang, ignited by a short fuse, and used mostly as an entertainment or in celebrations. Same as Cracker, n., 3. See: Cracker