Noun
A dry, or sweet apéritif wine flavored with aromatic herbs, and often used in mixed drinks.
Hyponyms: Martini, (dated slang) French
A serving of vermouth.
Source: en.wiktionary.orgVermouth always makes me brilliant unless it makes me idiotic, but we'll hope for the best. E. F. Benson
Do not allow children to mix drinks. It is unseemly and they use too much vermouth. Fran Lebowitz
The proper union of gin and vermouth is a great and sudden glory; it is one of the happiest marriages on earth, and one of the shortest lived. Bernard DeVoto
There is something about a martini, Ere the dining and dancing begin, And to tell you the truth, It is not the vermouth I think that perhaps its the gin. Ogden Nash
According to Nolet, a great martini stands on its own in flavor, with only a splash of dry vermouth. Source: Internet
According to Stuart Walton and Brian Glover, vermouth "is as far removed from the natural produce of the vine as it is possible for a fortified wine to get." Source: Internet