Mai-tai ingredient

• Bar mixer
• Herb-flavored drink
• Cocktail flavoring
• Alcoholic liquor flavored with bitter herbs and roots
• Old-fashioned ingredient
• Pink Gin ingredient
• Dry, sharp-tasting ales

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Bitters \Bit"ters\, n. pl. A liquor, generally spirituous in which a bitter herb, leaf, or root is steeped.

WordNet Word definitions in WordNet
n. alcoholic liquor flavored with bitter herbs and roots

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
1713, from bitter . So called for its taste.