What does sedater mean?
Sedater is an uncommon noun denoting a person or thing that produces sedation. Its meaning is based on the verb “sedate,” meaning to make someone calmer, less alert, or less active, and the suffix “-er,” which forms an agent noun. In general modern English, however, people are more likely to use “sedative” for a substance that induces calmness or sleep, or to describe an action with a phrase such as “a calming drug.” A sedater can refer literally to a drug or medical substance, but the word can also denote a person whose function is to calm or incapacitate another. Because it is rare and somewhat stiff or technical, “sedater” would usually require context to sound natural. It is distinct from the more familiar “sedative”: the sedater performs the sedating, while the sedative is typically the substance used to do so.
nounA sedater is a person or thing that sedates; the term is rarely used in general English.
- A person or thing that causes sedation or calms someone or something.
"The veterinarian used a mild sedater before examining the frightened cat."
"The doctor administered a carefully measured dose of the sedater."
"The anaesthetic acts as a powerful sedater before surgery."
Rare; the plural is formed regularly with “-s”.
"The attendants checked the sedaters before the procedure."
A sedater does the calming; a sedative is the means of doing it.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of sedater
The word is formed within English from “sedate,” a word borrowed from Latin “sedare,” meaning “to make calm” or “to soothe.” The Latin verb is related to “sede,” meaning “to sit,” and ultimately to the same root seen in “sedentary” and “sediment.” The English agent suffix “-er” was added to “sedate” to denote a person or thing that performs the action. Its formation is transparent, but the resulting noun is not common in present-day usage.
How sedater is actually used
This is an uncommon agent-noun formation and is usually replaced by more natural wording such as “sedative” or “an anaesthetic” in contemporary English.
Easily confused with sedater
A sedater is the agent that causes sedation, whereas a sedative is the drug or other means used to produce it.