D defs.my
Entry 1 sense Webster, 1913

Treenail

· Tree·nail · IPA /ˈtɹiːˌneɪl/
01 n. A long wooden pin used in fastening the planks of a vessel to the timbers or to each other.
  1. 1.
    A long wooden pin used in fastening the planks of a vessel to the timbers or to each other.(Shipbuilding)