subcrustadj.n.

1874 J. Le Conte in Amer. Jrnl. Sci. 7 180 Whether we regard the sub-mountain liquid as locally formed by the transformation of mechanical energy into heat..or whether we regard it as a remnant of the original sub-crust fire-sea of Dana.

1926 Lancet 4 Sept. 485/2 The subcrust exudate..is the exudate found after complete removal of the crusts.

1943 E. G. Halliday & I. T. Noble Food Chem. & Cookery viii. 202 In cutting the samples do not include any subcrust crumb that is not uniform with the rest of the cake.

1992 D. E. Weingand Connections: Literacy & Cult. Heritage 62 Iceland may be roughly characterized as a big block built up by eruptive masses, broken up by vertical and horizontal crust and sub-crust movements.

2010 Geoderma 160 66/2 The sampling procedure was used as a rough approximation to describe a soil surface as degraded by rain, including both the crust and the underlying, i.e. sub-crust, materials.

1882 Amer. Jrnl. Sci. 123 290 There is no difficulty in supposing that the crust and subcrust to a depth of 100 to 150 miles..may have contracted its volume.

1886 Athenæum 4 Sept. 297/3 The intervening zone, or sub-crust, which we should probably regard as being..in a state of hydro-thermal plasticity.

1913 Proc. Inst. Municipal & County Engineers 39 108 The chief object being to get the roads into shape, and to roll in any fairly hard material, so as to form a subcrust for a surface coat of harder material.

1952 E. L. Leeming Road Engin. (ed. 3) i. 6 Information regarding the nature of the soil and of subsoil water enables the road formation to be designed economically according to the nature of the subcrust upon which it is carried.

1964 Trans. Brit. Mycol. Soc. 47 182 Pileus dimidiate,..brown to fulvo-ferruginous, covered by a tomentose layer, up to 3 mm. thick, over a distinct subcrust.

2002 W. Glen in E. B. Hook Prematurity Sci. Discov. viii. 102 Geophysicists made surmises about the oceanic crust and the subcrust from the very short-term behavior of earthquake waves.