myosis

nouns

an acute infectious disease occurring in epidemic form and featuring paroxysms of pain (usually in the chest)
Bornholm disease, diaphragmatic pleurisy, epidemic myalgia, epidemic pleurodynia, myosis
reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller
light reflex, miosis, myosis, pupillary reflex
is derived from
myotic