atactic

[ ey-tak-tik ]

adjective

, Chemistry.

1. (of a polymer) not stereospecific; lacking tacticity.

atactic

/ eɪˈtæktɪk /

adjective

1. chem (of a polymer) having random sequence of the stereochemical arrangement of groups on carbon atoms in the chain; not stereospecific
2. pathol relating to or displaying ataxia

Word History and Origins

Origin of atactic¹

1955–60; a- ⁶ + -tactic, back formation from tacticity