-) KEY NOUN: pl. ma·tur·i·ties
- The state or quality of being fully grown or developed.
- The state or quality of being mature.
- The time at which a note or bond is due.
- The state of a note or bond being due.
- Geology A stage in the development of streams or landscapes at which maximum development has been reached or at which the process of erosion is going on with maximum vigor. Maturity of a landscape continues throughout the period of maximum topographic differentiation or until about three fourths of the original mass is carried away by erosion.
Middle English maturite
, from Old French, from Latin mtrits
, from mtrus
; see mature