ATACTIC
Meaning of ATACTIC in English
/ay tak"tik/ , adj. Chem.
(of a polymer) not stereospecific; lacking tacticity.
[ 1955-60; A- 6 + -tactic, back formation from TACTICITY ]
Random House Webster's Unabridged English dictionary.
Полный английский словарь Вебстер - Random House .
2012