Definition of repugnatorial in US English:

repugnatorial

adjective

Zoology
  • Of or relating to the secretion by some invertebrates of a repellent fluid for defence against predators.

Origin

Late 19th century; earliest use found in Psyche. From classical Latin repugnātōrius repugnatory + -al.

Pronunciation

repugnatorial

/rɪˌpʌɡnəˈtɔːrɪəl/