Definition of "serin" [ser•in]

• Any of several Old World finches of the genus Serinus having yellowish plumage, especially a European species (S. serinus) closely related to the canary. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The serin gas attack in the Tokyo subway system, done by a looped out cult with a belief system totally discontected from any serious political or demographic movement."
• "Adult male Ethiopian black-headed siskin, Serinus nigriceps, also known as the Ethiopian siskin or (African/Abyssinian) black-headed siskin, or the black-headed serin, photographed at Bale Mountains, Ethiopia (Africa)."
• "Ruppell's chat (Myrmecocichla melaena) and Ankober serin (Serinus ankoberensis) are two notable near-endemics."