ˈmakrəˌpō(ə)r noun
Etymology: macr- + pore
: a pore (as in coal) of comparatively large size ; especially : a pore in soil of such size that water drains from it by gravity and is not held by capillary action
• mac·ro·porosity |ma(ˌ)krō+ noun
• mac·ropo·rous |makrə|pōrəs, (ˈ)ma|kräpərəs adjective