Ictus

[ik-tuh s] /ˈɪk təs/

noun, plural ictuses, ictus.
1.
Prosody. rhythmical or metrical stress.
2.
Pathology.

/ˈɪktəs/
noun (pl) -tuses, -tus
1.
(prosody) metrical or rhythmic stress in verse feet, as contrasted with the stress accent on words
2.
(med) a sudden attack or stroke
n.

verse stress, 1752, from Latin ictus “a blow, stroke, thrust,” of voices “a beat, impulse, stress,” from icere “to strike, hit,” related to iacere “to throw” (see jet (v.)).

ictus ic·tus (ĭk’təs)
n. pl. ictus or ic·tus·es
A sudden attack, stroke, or seizure.