A metal-hubbed wheel of great strength and elasticity, esp. adapted for artillery carriages and motor cars. [ Webster 1913 Suppl. ]
‖n. [ Pref. archi + blastula. ] (Biol.) A hollow blastula, supposed to be the primitive form; a cœloblastula. [ 1913 Webster ]
n. (Bot.) See Cibol. [ 1913 Webster ]