Bhikshu (Sk.). In Pâli Bihkhu. The name given to the first followers of Sâkyamuni Buddha. Lit., “mendicant scholar”. The Sanskrit Chinese Dictionary explains the term correctly by dividing Bhikshus into two classes of Sramanas (Buddhist monks and priests), viz., “esoteric mendicants who control their nature by the (religious) law, and exoteric mendicants who control their nature by diet;” and it adds, less correctly: “every true Bhikshu is supposed to work miracles”.
Source: H.P.Blavatsky - The Theosophical Glossary