INTERACTANT
Meaning of INTERACTANT in English
/in'teuhr ak"teuhnt/ , n.
1. a person or thing that interacts.
2. Chem. reactant (def. 2).
[ 1945-50; INTERACT + -ANT ]
Random House Webster's Unabridged English dictionary.
Полный английский словарь Вебстер - Random House .
2012