monotypy

About 0.02 uses per million words.

Meaning

1. noun The condition of a taxon having only a single subordinate taxon.
2. noun The condition of a habitat being dominated by a single species.

Similar words

monophylly monostely monocephaly monoplast monoclinism monoptote monocotyledony monocellularity monoicy monocyesis

Often followed by

and