This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Of or pertaining to ataxia

adj. Describing any regular polymer or other macromolecule in which the orientation of the subunits is random

Disconnected; without arrangement or order: in grammar, opposed to syntactic: as, an atactic sentence.

Same as ataxic.

adj. lacking motor coordination; marked or caused by ataxia

"Prof. Natta extended the research conducted by Ziegler on organometallic catalysts to the stereospecific polymerization, thus discovering new classes of polymers with a sterically ordered structure, viz. isotactic, syndiotactic and di-isotactic polymers and linear non branched olefinic polymers and copolymers with an atactic (or sterically nonordered) structure."