In Engllsh law. A writ to recover damages against a bishop who does not admit a plaintifTs clerk. It is, however, rarely or never necessary; for it is said that a bishop, refusing to execute the writ ad admittcndum clericum, or mak-lng an Insufficient return to it, may he fined, wats. Cler. Law, 302
Source: Black's Law Dictionary 2nd Ed (1910)