allision /əˈlɪʒən/ noun2 •The striking of a vessel against a fixed object; the act of alliding or an instance thereof. •(rare) The act of dashing against or striking upon.There have not been any islands of note, or considerable extent, torn and cast off from the continent by earthquakes, or severed from it by the boisterous allision of the sea. — 1695 formsallisions