Concrescence

имя существительное [биология] сращение Синоним(ы): union

Большой англо-русский словарь

Concrescence

noun Etymology: Latin concrescentia, from concrescent-, concrescens, present participle of concrescere to grow together, from com- + crescere to grow — more at crescent 1. increase by the addition of particles 2. a growing together; coalescence • concrescent adjective

Merriam-Webster's Collegiate Dictionary