不定元
Traditional form:
不定元
Pinyin (reading):
bùdìngyuán
Definitions:
- indeterminate element (math.), often denoted by x
Characters:
- 不 - no, not, un-; negative prefix
- 定 - to decide, to fix, to settle; to order; definite, fixed, sure
- 元 - first; dollar; origin; head
Traditional characters: