Mites

noun

1. Any of many minute arachnids which, along with the ticks, comprise subclass Acarina (aka Acari).
2. A small coin formerly circulated in England, rated at about a third of a farthing.
3. A lepton, a small coin used in Palestine in the time of Christ.
4. A small weight; one twentieth of a grain.
5. (sometimes used adverbially) Anything very small; a minute object; a very little quantity or particle