Cēph'a-lo-thō'rax, n.
n. [Gr. κεφαλή, head, and θώραξ, the chest.] (Entom. & Zoöl.) The first segment of the Arachnida and Crustacea, consisting of the united head and thorax.
n. [Gr. κεφαλή, head, and θώραξ, the chest.] (Entom. & Zoöl.) The first segment of the Arachnida and Crustacea, consisting of the united head and thorax.