| n. | 1. | (Pros.) The stress of voice laid upon accented syllable of a word. Cf. Arsis. |
| 2. | (Med.) A stroke or blow, as in a sunstroke, the sting of an insect, pulsation of an artery, etc. |
| Noun | 1. | ictus - a sudden occurrence (or recurrence) of a disease; "he suffered an epileptic seizure" |