MIMOSA (Micromeasurements of Satellite Acceleration) is a Czech scientific microsatellite. The satellite is nearly spherical with 28 sides and carries a microaccelerometer to monitor the atmospheric density profile by sensing the atmospheric drag on the approximated sphere.

Mimosa is a genus of about 400 species of herbs and shrubs, in the subfamily Mimosoideae of the legume family Fabaceae. The generic name is derived from the Greek word (mimos), an "actor" or "mime," and the feminine suffix -osa, "resembling", suggesting its 'sensitive leaves' which seem to 'mimic conscious life'.