macroporen.

Brit.

/ˈmakrə(ʊ)pɔː/, U.S.

/ˈmækrəˌpɔr/

Origin: Formed within English, by compounding. Etymons: macro- comb. form, pore n.¹

Etymology: < macro- comb. form + pore n.¹ Compare earlier micropore n.

A relatively large pore; (Geology and Soil Science) a pore which is too large to retain water by capillarity.

ΚΠ

1939 Chem. Abstr. 33 1200 Porous solids have a ‘pile of spheres’ structure, the spaces between the solid fragments being the macropores; the micropores extend fjord-like into the solid particles.

1976 Nature 16 Sept. 214/1 Pore sizes range from 1,000 Å (macropores) to a few Å (micropores).

1993 Gloss. Terms Particle Technol. (B.S.I.) 14/2 Macropore, a pore with width greater than 50nm (approximately).

1996 A. Outwater Water 76 When water falls on a prairie dog town, it falls on soil filled with what hydrologists call macropores—tunnels larger than a millimeter in diameter.

This is a new entry (OED Third Edition, March 2000; most recently modified version published online March 2022).

单词	macropore
释义	macroporen. Brit. /ˈmakrə(ʊ)pɔː/, U.S. /ˈmækrəˌpɔr/ Origin: Formed within English, by compounding. Etymons: macro- comb. form, pore n.¹ Etymology: < macro- comb. form + pore n.¹ Compare earlier micropore n. A relatively large pore; (Geology and Soil Science) a pore which is too large to retain water by capillarity. ΚΠ 1939 Chem. Abstr. 33 1200 Porous solids have a ‘pile of spheres’ structure, the spaces between the solid fragments being the macropores; the micropores extend fjord-like into the solid particles. 1976 Nature 16 Sept. 214/1 Pore sizes range from 1,000 Å (macropores) to a few Å (micropores). 1993 Gloss. Terms Particle Technol. (B.S.I.) 14/2 Macropore, a pore with width greater than 50nm (approximately). 1996 A. Outwater Water 76 When water falls on a prairie dog town, it falls on soil filled with what hydrologists call macropores—tunnels larger than a millimeter in diameter. This is a new entry (OED Third Edition, March 2000; most recently modified version published online March 2022). < n.1939
随便看	helpmeet helpmeets helps helps out helpship helpster helptire helptune helpwork helpworthy helpy helpyourself helter-skelter helter-skelter lighthouse helter-skelteriness helterskelter helterskelter lighthouse helterskelteriness helve helve-hammer helved helvehammer helvellic helvellic acid helvenac