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1. Oxford American Dictionary

   Y

   • IPA[wī]

   美式

   • n.
     the twenty-fifth letter of the alphabet.；denoting the next after X in a set of items, categories, etc.

   • noun: Y, plural noun: Y's

2. • 釋義

   n.

   名詞

   • 1. the twenty-fifth letter of the alphabet.
   • ▪ denoting the next after X in a set of items, categories, etc.
   • ▪ denoting a second unknown or unspecified person or thing the claim that chemical X causes birth defect Y
   • ▪ the second unknown quantity in an algebraic expression, usually the dependent variable.
   • ▪ denoting the secondary or vertical axis in a system of coordinates the
   • 2. a shape like that of a capital Y rows of tiny Y-shaped motifs