单词	pi
释义	English American pinoun uk/paɪ/us/paɪ/symbol Π, π [ U ] mathematics, science the number (approximately 3.14) used to calculate the size of circles [ C or U ] language the 16th letter of the Greek alphabet Thesaurus: synonyms and related words Mathematical symbols addition sign degree division sign equal sign expression foot minus multiplication sign placeholder plus point subtraction sign x y You can also find related words, phrases, and synonyms in the topics: Letters of alphabets pinoun [ U ] /pɑɪ/symbol π geometry a number that is the ratio (= comparison) of the distance around a circle to the distance across the circle, equal to about 3.14159
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