atactic

[ey-tak-tik]

adjective Chemistry.

(of a polymer) not stereospecific; lacking tacticity.

Origin of atactic

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

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for atactic

atactic

adjective

chem (of a polymer) having random sequence of the stereochemical arrangement of groups on carbon atoms in the chain; not stereospecific

pathol relating to or displaying ataxia

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012