Definition of porencephalous in English:

porencephalous

Pronunciation /ˌpɔːrɛnˈsɛfələs/ /ˌpɔːrɛnˈsɛf(ə)ləs/ /ˌpɔːrɛnˈkɛfələs/

adjective

rare Medicine

Origin

Late 19th century; earliest use found in Brain: a journal of neurology. From porencephal- + -ous.