When no particular type of teaspoonful is specified for a dry ingredient it may mean a level or a rounded spoonful, never a heaping/heaped one.
Toddlers under two should be offered a teaspoonful every 12 minutes.
Koshary tea is usually light, with less than a half teaspoonful per cup considered to be near the high end.
A "rounded" teaspoonful is a larger but less precise measure, produced without levelling the ingredient off nor heaping it as high as possible.
Ethylene glycol, often used as an automotive antifreeze, is particularly appealing to cats, and as little as a teaspoonful can be fatal.
This is a poverty question in which we see the poison of poverty compelling the taking of another poison in order to spread out a teaspoonful of tea.
It is not our purpose—in fact we would not succeed if it were—to add one teaspoonful to the petrol which is allowed to those who drive these motorcars.
They advertise mammoth packs when there is not a teaspoonful more by weight in the bigger pack than in the smaller.
