(astronomy) An aggregation of individual stars, dust, and gas (and possibly dark matter) that surrounds a galaxy

(phytopathology) A bacterial disease of bean plants, caused by Pseudomonas syringae pv. phaseolicola.

A flagship car model used to bring prestige to a mark or brand of autos, through the halo effect, by symbolic association with other car models and the brand itself.

plural of halo car

(radiology) The finding of a dark halo around the arterial lumen on ultrasound, suggesting a diagnosis of temporal arteritis.

plural of halo sign

plural of galactic halo

plural of halo effect

plural of halo nucleus

plural of pleochroic halo