dose
UK: dəʊs | US: doʊs
n. a measured quantity of a medicine or substance to be taken at one time
n. an amount of radiation or other physical agent absorbed or experienced
vt. to administer a measured quantity of medicine
The word "dose" originates from the Greek "dosis" (a giving), derived from "didonai" (to give). It entered English via Latin "dosis" and Old French "dose," retaining its core meaning of a measured quantity given for medical purposes. Over time, it expanded to include non-medical contexts like radiation exposure.
The doctor prescribed a daily dose of antibiotics.
Excessive sun exposure can deliver a harmful dose of UV radiation.
She carefully dosed the liquid medicine for her child.
The vaccine requires two doses for full immunity.
A high dose of caffeine can cause jitteriness.