pi

US [paɪ]
UK [paɪ]
  • n.圆周率;希腊字母表的第 16 个字母
  • adj.有道德的
  • Web聚酰亚胺(polyimide);皮;等电点
Past Participle:pied  Present Participle:piing  Simple Present:pies  Plural Form:pis  
pi
n.
1.
圆周率the symbol π used to show the ratio of the circumference of (= distance around) a circle to its diameter (= distance across), that is 3.14159…
2.
希腊字母表的第 16 个字母the 16th letter of the Greek alphabet (Π, π)

Sample Sentence

Definition:
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