Subpoena ad testificandum
Defined in 2 dictionaries — Ballentine's (1916), Black's (1910)
Ballentine's Law Dictionary
James A. Ballentine · 1916
A subpoena for one to give his testimony.
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
Subpoena to testify. The common subpoena requiring the attendance of a witness on a trial, inquisition, or examination. 3 Bl. Comm. 369; In re Strauss, 30 App. Div. 610, 52 1ST. Y. Supp. 392,
Defined under Subpœna in Black's Law Dictionary.