| RCR | relative consumption rate; replication-competent retrovirus; respiratory control ratio |
|---|---|
| MC | mass casualties; mast cell; Master of Surgery [Lat. Magister Chirurgiae]; maximum concentration; Med... |
| IDI | immunologically detectable insulin; induction-delivery interval; inter-dentale inferius |
| IMD | immunodeficiency; immunologically mediated disease; institution for mentally disabled |
| IMI | immunologically measurable insulin; impending myocardial infarction; Imperial Mycological Institute ... |