4. (Geol.)
Defn: An aggregated mass of any ore or mineral, in an isolated state, within a rock.
5. A collection of boxes, cases, or the like, of graduated size, each put within the one next larger.
6. (Mech.)
Defn: A compact group of pulleys, gears, springs, etc., working together or collectively. Nest egg, an egg left in the nest to prevent the hen from forsaking it, and to induce her to lay more in the same place; hence, figuratively, something laid up as the beginning of a fund or collection. Hudibras.
NEST
Nest, v. i.
Defn: To build and occupy a nest.
The king of birds nested within his leaves. Howell.
NEST
Nest, v. t.
Defn: To put into a nest; to form a nest for.
From him who nested himself into the chief power. South.
NESTFUL
Nest"ful, n.; pl. Nestfuls (.