Term: litmus: a coloring material (obtained from lichens) that turns red in acid solutions and blue in alkaline solutions; used as a very rough acid-base indicator
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: diggings: temporary living quarters
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: arminian church: the Protestant denomination adhering to the views of Jacobus Arminius
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: chalcedony: a milky or greyish translucent to transparent quartz
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: poll: the part of the head between the ears
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: kernel: a single whole grain of a cereal
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: water system: a river and all of its tributaries
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: tax write-off: a reduction in the gross amount on which a tax is calculated; reduces taxes by the percentage fixed for the taxpayer's income bracket
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: third rail: a rail through which electric current is supplied to an electric locomotive
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: propeller: a mechanical device that rotates to push against air or water
Broader: abstraction: a general concept formed by extracting common features from specific examples | Unrelated: tamil: a member of the mixed Dravidian and Caucasian people of southern India and Sri Lanka