Loggerhead
Pronunciation : Log"ger*head`
Part of Speech : n.
Etymology : [Log + head.]
Definition : 1. A blockhead; a dunce; a numskull. Shak. Milton.
2. A spherical mass of iron, with a long handle, used to heat tar.
3. (Naut.)
Defn: An upright piece of round timber, in a whaleboat, over which a turn of the line is taken when it is running out too fast. Ham. Nav. Encyc.
4. (Zo?l.)
Defn: A very large marine turtle (Thalassochelys caretta, or caouana), common in the warmer parts of the Atlantic Ocean, from Brazil to Cape Cod; -- called also logger-headed turtle.
5. (Zo?l.)
Defn: An American shrike (Lanius Ludovicianus), similar to the butcher bird, but smaller. See Shrike. To be at loggerheads, To fall to loggerheads, or To go to loggerheads, to quarrel; to be at strife. L' Estrange.
Source : Webster's Unabridged Dictionary, 1913