Definition of octopine in US English:

octopine

(also octopin)

noun

Biochemistry
  • An amino acid of the opine group, C₉H₁₈N₄O₄, found in the tissues of some cephalopods and lamellibranch molluscs and also synthesized by plant cells infected by certain strains of the crown gall pathogen Agrobacterium tumefaciens.

Origin

1920s; earliest use found in Chemical Abstracts. From octopus + -ine, after German Oktopin, so called on account of the compound being first found in octopus muscle.