Definition of prenarial in US English:

prenarial

adjective

Zoology
  • Situated in front of the nostrils. Also (rare): of or relating to the external nares.

Origin

Mid 19th century; earliest use found in Richard Owen (1804–1892), comparative anatomist and palaeontologist. From pre- + narial.

Pronunciation

prenarial

/ˌpriːˈnɛːrɪəl/