Dictionary.com
Thesaurus.com

tetracid

American  
[te-tras-id] / tɛˈtræs ɪd /

noun

Chemistry.
  1. a base or alcohol containing four hydroxyl groups.


tetracid British  
/ tɛˈtræsɪd /

adjective

  1. (of a base) capable of reacting with four molecules of a monobasic acid

"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

Etymology

Origin of tetracid

tetr- + acid