brainscan noun1 •A scan of the brain, for example using computed tomography.Radiomercury brainscans are best made at speeds of under 40 cm/min, and ⁹⁹ᵐTc-pertechnetate and ¹¹³ᵐInDTPA brainscans under 60 cm/min. — 1972 formsbrainscans
