That operates on the opioid system in the body or brain.

Of or relating to Thomas Tooke (1774–1858), English economist who wrote about money and statistics.

(group theory) Being an analogue of the Heisenberg group over a finite field whose size is a prime.

(organic chemistry) The polyketide (5S,6R)-1-[(2E,4E,6S)-4,6-dimethylocta-2,4-dienoyl]-5,6-dihydroxy-5-methyl-6,7-dihydro-2-benzofuran-4-one present in the Aspergillus fungus