底数 dǐshù base number Definitions Defs Origin Strokes Stroke Words Sentences Sents dǐshù base number 底 dǐ radix (math.) the base of a number system or a logarithm; short for 底数 dǐshù数 數 shù noun mathematical value a mathematical value or concept, such as an integer or an even numberdǐshù the facts 底 dǐ adverb ins and outs The truth behind a matter; the underlying details or background information数 數 shù nounnumeral number number; amount; quantity; figuredǐshù minimum amount 底 dǐ nounlocative bottom The lowest part of an object or body of water; base; foundation数 數 shù nounnumeral number number; amount; quantity; figure