Relating to immunohistopathology.

(transitive) To cause to become awake. / (intransitive) To stop sleeping; awake. / (transitive, figuratively) To bring into action (something previously dormant); to stimulate.

(botany) The scientific study of ferns and other pteridophytes.

A Greek given name. / The pre-Socratic philosopher Xenophanes of Colophon; by extension or reference, any profound or transformative religious thinker.