01 n. As much as teaspoon will hold; enough to fill a teaspoon; -- usually reckoned at a fluid dram or one quarter of a tablespoonful. Approximat…
pl.
Teaspoonfuls, Teaspoonsful ((-fụlz))
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1.
As much as teaspoon will hold; enough to fill a teaspoon; -- usually reckoned at a fluid dram or one quarter of a tablespoonful. Approximately 5 ml, usually abbreviated tsp.