marl Definition

marl
noun

1. geol.
A mixture of clay and limestone.

verb

marled, marling
1. To apply marl to (sandy soil, etc).

Derivative: marling
noun

especially formerly
The process of adding marl to light sandy soil to improve its texture and fertility and to increase its water-holding capacity.

Derivative: marly
adj

Etymology: 14c: from French marle, from Latin marga.