(computing) That cannot be deleted; indelible.

The language of the original Aryans.

(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.

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