ˈ ̷ ̷ˌspünˌfu̇l sometimes -pu̇n- noun
( plural teaspoonfuls or teaspoonsful -nˌfu̇lz, -nzˌfu̇l)
Etymology: teaspoon + -ful
1. : as much as one teaspoon can hold : enough to fill a teaspoon
2. : a unit of measure used especially in cookery and pharmacy equal to one level teaspoonful or 1 1/3 fluid drams