micromillimetre
/ˈmʌɪkrə(ʊ)ˌmɪlɪmiːtə/(also micromillimeter)
noun
1Chiefly Histology. One thousandth of a millimetre, a micron or micrometre. Now rare.
2In general use: an extremely tiny distance.
Origin
Mid 19th century. From micro- + millimetre.
- birthplace
- birth rate
- birthright
- birthright citizenship
- birth sex
- birth sign
- birthstain
- birthstone
- birth weight
- birthweight
- birthwort
- Birtwistle, Sir Harrison
- biryani
- bis
- bis-
- Bisbee
- Biscay, Bay of
- Biscayne Bay
- biscotti
- biscuit
- biscuit barrel
- biscuit beetle
- biscuit bomber
- biscuit cutter
- biscuit fire