A rounded mass of a mineral, sometimes found in sedimentary rock or on the ocean floor.
The action of making something concrete or the result of such an action.
A solid, hard mass formed by a process of aggregation or coalescence.
The process of aggregating or coalescing into a mass.
A fine-grained sedimentary rock of a thin, laminated, and often friable, structure.
A shell or husk; a cod or pod.
To take off the shell or coat of.