1. The addition of an ingredient or the application of an agent in a measured dose; the presence and relative representation or strength of a factor or agent
2. Dose: the giving of a dose o regulation or determination of doses
3. An exposure to some experience in or as if in measured portions

ETYM French dose, Greek dosis a giving, a dose, from didonai to give; akin to Latin dare to give. Related to Date point of time.
1. A measured portion of medicine taken at any one time.
2. The quantity of an active agent (substance or radiation) taken in or absorbed at any one time; SYN. dosage.

ETYM Latin, from modicus moderate, from modus. Related to Mode.
A small or moderate or token amount.