(computing) That cannot be deleted; indelible.

(archaic, virology) Any of the former family Papovaviridae, now split into the Papillomaviridae and Polyomaviridae families, of viruses that cause papillomas or polyomas in animals.

The language of the original Aryans.

(obsolete) Resistance, opposition. / (now rare) Reluctance, disinclination.