Dose means quantity in the following fields:

In nutrition, medicine, and toxicology:

• Dose (biochemistry), the quantity of something that may be eaten by or administered to an organism, or that an organism may be exposed to

• Absorbed dose, an amount of radiation received
• Dosing, the process of administering a measured amount of a medicine or chemical to an inanimate object or non-human animal
• Effective dose, the smallest amount of a substance required to produce a measurable effect on a living organism
• Equivalent dose, a measure of radiation dosage to tissue
• Maximum tolerated dose, the highest dose of a radiological or pharmacological treatment that will produce the desired effect without unacceptable toxicity.
• Optimal Biological Dose, the quantity of a radiological or pharmacological treatment that will produce the desired effect with acceptable toxicity.
• Reference dose, the United States Environmental Protection Agency's maximum acceptable oral dose of a toxic substance