Definition of non-persistent in US English:

non-persistent

adjective

  • That does not persist, especially in the course of phylogeny or ontogeny, or in the environment; (Botany) designating or relating to plant viruses that are carried only briefly and superficially on the mouthparts of insect vectors (also called non-circulative).

Origin

Late 19th century. From non- + persistent.

Pronunciation

non-persistent

/ˌnɒnpəˈsɪst(ə)nt/