ˈafəˌnīt, usu -d.+V noun
( -s )
Etymology: French, from aphan- + -ite
: a dark rock of such close texture that its separate grains are invisible to the naked eye
• aph·a·nit·ic |afə|nid.ik adjective
• aph·a·nit·ism ˈafəˌnīd.ˌizəm; əˈfanəˌtiz-, aˈ- noun -s