say it: suh-DAY-shuhn
sedation is a noun meaning "a state of reduced excitement or anxiety that is induced by the administrative of a sedative agent". It carries 2 recorded senses.
a state of reduced excitement or anxiety that is induced by the administrative of a sedative agent
the administration of a sedative agent or drug
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for sedation come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.