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Webster 1913 Edition

Noun.

[L.

sedatio

The act of calming, or the state of being calm.

[R.]

Coles.

Noun.

The act of calming. [Not in use.]

See also: sedation

sédation f ‎(plural sédations)

Jacques Quevauvilliers, Dictionnaire médical, Elsevier Masson, Issy-les-Moulineaux, 5th ed., 2007, ISBN 978-2-294-01941-8