Definition of monaxon in English:

monaxon

Pronunciation /ˌmɒnˈaksɒn/

adjective

Zoology
  • Of a sponge spicule: having a single (straight or curved) axis.

noun

Zoology
  • A monaxon sponge spicule.

Origin

Late 19th century; earliest use found in Encyclopaedia Britannica.