aph·a·nite 
(ăfə-nīt′)
(ăfə-nīt′)n.
A dense, homogeneous rock with constituents so fine that they cannot be seen by the naked eye.
[From Greek aphanēs, unseen : a-, not; see A-1 + phainesthai, phan-, to appear, passive of phainein, to show; see PHENOMENON.]
aph′a·nitic (-nĭtĭk) adj.
- thermogenetic
- thermogenic
- thermogram
- thermograph
- thermographic
- thermographically
- thermography
- thermohaline
- thermojunction
- thermokarst
- thermolabile
- thermolability
- thermoluminescence
- thermoluminescent
- thermolysis
- thermolytic
- thermometer
- thermometric
- thermometry
- thermomotor
- thermonuclear
- thermoperiodicity
- thermoperiodism
- thermophile
- thermophilic