What it means
The beginning of words for something single or affecting only one. A monocyte is one kind of white blood cell with a single large nucleus; monotherapy is treatment with one drug; mononeuropathy affects one nerve; monoplegia is paralysis of one limb. Its opposite in counting is poly-, meaning many.
Remember it
A monorail runs on one rail.
At a glance
| Also written | mon/o |
|---|