名詞 quadratic:

1. an equation in which the highest power of an unknown quantity is a square
   同義詞：quadratic equation
2. a polynomial of the second degree
   同義詞：quadratic polynomial

形容詞 quadratic:

1. of or relating to or resembling a square
2. of or relating to the second power

1. The branch of algebra that deals with quadratic equations.
   二次方程式論處理二次方程式的代數(shù)學的分支

quad.rat.ic

adj.Mathematics （形容詞）【數(shù)學】
Of, relating to, or containing quantities of the second degree.
二次的：屬于二次的，與二次有關(guān)的，或包含二次數(shù)的

來源：
From quadrate
源自 quadrate

【引伸】
quadrat.ic
n.（名詞）
quadrat.ically
adv.（副詞）