Selvage

Part of speech: noun Origin: Late Middle English, 15th century. (Geological term is from the 1930s.)

 

1 An edge produced on woven fabric during manufacture that prevents it from unraveling.

2 (Geology) a zone of altered rock, especially volcanic glass, at the edge of a rock mass.

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ho·mol·o·gous

/hōˈmäləɡəs,həˈmäləɡəs/

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adjective

adjective: homologous

1. having the same relation, relative position, or structure.

   • BIOLOGY

     (of organs) similar in position, structure, and evolutionary origin but not necessarily in function ......
   • BIOLOGY

     (of chromosomes) pairing at meiosis and having the same structural features and pattern of genes.
   • CHEMISTRY

     (of a series of chemical compounds) having the same functional group but differing in composition by a fixed group of atoms.