microplate

noun

type of tectonic plate

Wiktionary

Pronunciation: /ˈmaɪkɹoʊˌpleɪt/

noun

Etymology: Etymology tree Proto-Indo-European *mey-der.? Ancient Greek μικρός (mikrós)der. English micro- Vulgar Latin *platta Old French platebor. Middle English plate English plate English microplate From micro- + plate.

A flat plate with multiple "wells" used as small test tubes.
A relatively small tectonic plate.