Unit Definition (Tablespoon [UK])
The tablespoon is a unit of volume used in food recipes. In Britain, traditional tablespoons varied somewhat in size, and various older references give sizes in the range from 1/2 to 5/8 Imperial fluid ounce (14.2-17.6 milliliters). The traditional British tablespoonful was often equal to 4 teaspoonfuls or 1/10 teacupful.

Unit Definition (centiliter)
The centiliter is a common metric unit of volume. One centiliter equals 10 cubic centimeters; this is about 0.610 24 cubic inch, 0.3318 U.S.fluid ounce or 0.3519 British fluid ounce. In the kitchen, a centiliter is roughly equal to 2 U.S. teaspoons (or 0.704 British tablespoonful).