submillimeter

About 0.06 uses per million words.

Meaning

1. adjective Less than a millimeter in size.
2. noun A unit or measurement that is less than a millimeter.

Similar words

submm submilliarcsecond submicrometer sub-milliarcsecond submillimetric submicrometric submicron submicrogram submicronic submicrometre

Often followed by

wave wavelengths waves range and region telescope wavelength observatory radiation