1.developer (photographic processing)2.contrast medium (medical imaging)
1.biological agent2.biological warfare agent
1.instance of administering a dose of vaccine2.number of vaccinations
(animal) fattening preparation
1.vasopressor agent2.antihypotensive agent (medicine)
a white paint applied to tree trunks to protect the trees from insect damage etc
1.stimulant2.psychostimulant3.agrypnotic
1.dose of medicine to be taken in solution2.infusion
1.corrective agent2.flavoring agent
1.feeding attractant2.phagostimulant
1.clouding agent2.emulsifier
1.a psychedelic2.hallucinogen
antispasmodic (pharmacology)