Ir

Symbol for iridium.

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drop of voltage across a resistor produced by a current; ileal resection; immune response; immunization rate; immunoreactive; immunoreagent; in room; index of response; impedance rheography; individual reaction; inferior rectus [muscle]; inflow resistance; information retrieval; infrared; infrarenal; inside radius; insoluble residue; inspiratory reserve; inspiratory resistance; insulin resistance; intermediate representation; internal resistance; internal rotation; interventional radiology; intrarectal; intrarenal; inversion recovery; inverted repeat; irritant reaction; ischemia-reperfusion; isovolumic relaxation

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IR abbr infrared

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iridium.