macropore

About 0.03 uses per million words.

Meaning

1. noun A macroscopic pore; any pore sufficiently wide to allow water or another liquid to flow unimpeded by capillary action
2. noun A pore of greater than 50 nanometers.

Similar words

micropore macrocapillary supermicropore mesopore ultramicropore microporosity megacapillary microcapillarity macropuncture nanopore

Often followed by

flow and diffusion system volume space structure size formation