Patient Handouts. 1  Acute coronary syndrome (Medical Encyclopedia) Also in Spanish. 2  Angioplasty and stent - heart - discharge (Medical Encyclopedia) Also in Spanish. 3  Angioplasty and stent placement - heart (Medical Encyclopedia) Also in Spanish. 4  Coronary angiography (Medical Encyclopedia) Also in Spanish.
Wiktionary(0.00 / 0 votes)Rate this definition: 1  influential(Noun) A person who has influence. 2  influential(Adjective) Having or exerting influence. John Lennon was a very influential person in music, as well as in politics, fashion and general culture.
Synonym Discussion of influence affect, influence, touch, impress, strike, sway mean to produce or have an effect upon. affect implies the action of a stimulus that can produce a response or reaction.