Lewis & Short

1. vŏpiscus, i, m., one of a pair of twins, born alive after the premature birth and death of the other: vopiscos appellabant a geminis, qui retenti utero nascerentur, altero interempto abortu, Plin. 7, 10, 8, § 47; Non. p. 557, 3; Sol. 1 med.; Isid. Orig. 9, 5.

2. Vŏpiscus, i, m. [1. vopiscus], a Roman surname.

  1. I. L. Julius Vopiscus, Liv. 2, 54, 3.
  2. II. Flavius Vopiscus, an historian in the time of Constantine the Great, who wrote the lives of several Roman emperors.