Definition of strongylosis in US English:

strongylosis

noun

Medicine
  • Infestation with or disease caused by strongyles (or, occasionally, other parasitic nematodes), especially in horses, typically resulting in diarrhoea, other gastrointestinal symptoms, and anaemia. [Infection of horses with Strongylus vulgaris may result in thrombosis and aneurysm formation in the mesenteric and other arteries, caused by migration of larval worms.]

Origin

Late 19th century. From strongyle + -osis.

Pronunciation

strongylosis

/ˌstrɒndʒɪˈləʊsɪs/