A spherical steel deep-diving chamber with perspex windows, in which persons are lowered to the depths by a cable to study the oceans and deep-sea life; the precursor to the bathyscaphe

The blunt ball or ornament on the top of a mace, usually made of metal.

(rare) Not comportable; intolerable; inconsistent; unsuitable; unendurable.

Of or relating to the Melchites.