[ 'mɒnad , 'məʊ- ]
■ noun
1》 technical a single unit; the number one.
2》 Philosophy (in the philosophy of Leibniz) an indivisible and hence ultimately simple entity, e.g. an atom or a person.
3》 Biology, dated a single-celled organism or a single cell.
Derivatives
~ic adjective
~ism noun ( Philosophy ).
Origin
C17: via late L. from Gk monas , ~- 'unit', from monos 'alone'.