(dated) Synonym of such-and-such

(informal) Used to indicate that something is the case and cannot be altered even if the listener does not want it to be the case.

Alternative form of or something

plural of Hohmann orbit

(algebra) A theorem which states that for each element of a given set that a given group acts on, there is a natural bijection between the orbit of that element and the cosets of the stabilizer subgroup with respect to that element.

(science fiction) A satellite or space station, found in many different works of science fiction, meant to defend a planet against attack from space.

plural of red-legged golden orb-weaver spider

The spider Nephila inaurata

(Christianity) To accept the teachings of Christianity or be doomed to hell.

(UK) A traditional university representative who gives public speeches on special occasions.