Miquel - Botanist in plant scientific name (HUH)
Miqva'ot - or Miqwa'ot (BJA)
Maiquetia - Venezuela - Airport symbol (AD)
Maniwaki - Quebec - Seismograph station code, US Geological Survey (SEIS)
Mariner Investment Technology, Tampa, FL - Manufacturer code for watercraft hull identification number (USCG)
Member of the Institute of Quarrying - British (DBQ)
Minimum Identifiable Quantity - Analytical chemistry
Minnesota Importance Questionnaire - Vocational test
Miskito - Language code (ETLW)