Definition of "impact"

impact

/ˈɪmpækt/

noun
countable and uncountable, plural impacts
1. The striking of one body against another; collision.
2. The force or energy of a collision of two objects.
3. (chiefly medicine) A forced impinging.
4. (figurative, proscribed) A significant or strong influence or effect.
  Quotations
  One way to reduce the environmental impact of meat eating is to make livestock more productive.
  2016, Jayson Lusk, Unnaturally Delicious, page 111
verb
third-person singular simple present impacts, present participle impacting, simple past and past participle impacted
1. (transitive) To collide or strike, the act of impinging.
2. (transitive) To compress; to compact; to press into something or pack together.
3. (transitive, figurative, proscribed) To significantly or strongly influence or affect; to have an impact on.
4. (transitive, rare) To stamp or impress onto something.