microporosityn.

1936 Proc. Royal Soc. A. 155 46 The channels in question provide a kind of micro-porosity similar to that of hydrated gels.

1961 A. Taylor X-ray Metallogr. iii. 32 For the more subtle flaws and fine detail, such as hairline cracks or microporosity, the much more sensitive photographic method must be employed.

1972 Science 13 Oct. 162/3 In many aspects the microporosity is strikingly different from that of Westerly granite.

1989 Proc. Royal Soc. A. 422 287 The magnetite bands, forming at relatively high oxygen partial pressures, do so with relatively little inherent microporosity.

1995 Ann. Rev. Ecol. & Systematics 26 208 The lower microporosity of the conventional system (presumably because of higher hydrostatic pressure within the soil).