A drink made with lime (sometimes lemon) juice, soda water and liquor, usually gin or whiskey. If sugar is added, the drink becomes a Tom collins. A nonalcoholic rickey always has sugar or sugar syrup added to it.
From The Food Lover's Companion, Fourth edition by Sharon Tyler Herbst and Ron Herbst. Copyright © 2007, 2001, 1995, 1990 by Barron's Educational Series, Inc.