
1) Acyclic 2) Open-chain 
Found on 
https://www.crosswordclues.com/clue/aliphatic

 Compare with aromatic. An organic compound that does not contain ring structures.
Found on 
http://antoine.frostburg.edu/chem/senese/101/glossary/a.shtml
 [R]
[R]  The enzyme contains Zn2+. ...
Found on 
http://en.wikipedia.org/wiki/Aliphatic_(R)-hydroxynitrile_lyase

of, like or pertaining to fat or fats in general
Found on 
http://phrontistery.info/a.html

• (a.) Of, pertaining to, or derived from, fat; fatty; -- applied to compounds having an openc-hain structure. The aliphatic compounds thus include not only the fatty acids and other derivatives of the paraffin hydrocarbons, but also unsaturated compounds, as the ethylene and acetylene series.
Found on 
http://thinkexist.com/dictionary/meaning/aliphatic/

Any organic compound in which the main structure is a chain of carbon atoms joined to each other.
Found on 
http://www.chemicalglossary.net/definition/145-Aliphatic

any non-aromatic organic compound
Found on 
http://www.encyclo.co.uk/local/20722

One of the main groups of hydrocarbons characterised by the straight or branched chain arrangement of constituent atoms. Aliphatic hydrocarbons belong to three subgroups: alkanes or paraffins, all of which are saturated and comparatively unreactive, the alkenes or alkadienes which are unsaturated (containing double [C=C] bonds) and more reactive, a...
Found on 
http://www.encyclo.co.uk/local/20747

<biochemistry, chemistry> A major class of organic compounds where carbon and hydrogen molecules are arranged in straight or branched chains. ... A type of hydrocarbon that includes alkanes, alkenes, and alkynes. ... (13 Nov 1997) ... 
Found on 
http://www.encyclo.co.uk/local/20973

(al″ĭ-fat´ik) pertaining to any member of the group of organic compounds having a branched or straight chain structure.
Found on 
http://www.encyclo.co.uk/local/21001

A descriptive term for chemical compounds composed of straight chain molecules.
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http://www.encyclo.co.uk/visitor-contributions.php

Carbon compound in which the carbon chain is open (non-cyclic).
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http://www.encyclo.co.uk/visitor-contributions.php
 Al`i·phat'ic  adjective
Al`i·phat'ic  adjective [ Greek ..., ..., oil, fat.] 
 (Org. Chem.) Of, pertaining to, or derived from, fat; fatty; -- applied to compounds having an openc-hain structure. The 
 aliphatic compounds thus include not only the 
 fatty acids and other derivatives of the paraffin hydrocarbons, ...
Found on 
http://www.encyclo.co.uk/webster/A/55

Type: Term Pronunciation: al-i-fat′ik Definitions: 1. Denoting the acyclic carbon compounds, most of which belong to the fatty acid series.
Found on 
http://www.medilexicon.com/medicaldictionary.php?t=2208

[
adj] - having carbon atoms linked in open chains
Found on 
http://www.webdictionary.co.uk/definition.php?query=aliphatic

An organic compound that does not contain ring structures. 
Found on 
https://www.encyclo.co.uk/local/20687
 adjective
 adjective having carbon atoms linked in open chains
Found on 
https://www.encyclo.co.uk/local/20974

pertaining to nonaromatic hydrocarbon compounds in which the constituent carbon atoms can be straight-chain, branched chain, or cyclic, as in alicyclic compounds; saturated, as in the paraffins; or unsaturated, as in the olefins and alkynes.
Found on 
https://www.infoplease.com/dictionary/aliphatic

derived from or related to fats and other derivatives of the paraffin hydrocarbons, including unsaturated compounds of the ethylene and acetylene series.
Found on 
https://www.usplastic.com/knowledgebase/article.aspx?contentkey=784
  No exact match found.