teaspoon

noun

1. a small spoon generally used to stir tea, coffee, etc.
2. a teaspoonful.

noun

1. a small spoon used for stirring tea, eating certain desserts, etc
2. Also called: teaspoonful (ˈtiːˌspuːnfʊl) the amount contained in such a spoon
3. a unit of capacity used in cooking, medicine, etc, equal to about one fluid dram

n.1680s, from tea + spoon (n.). n.

1. A measure of about 1 fluid dram or 5 milliliters.