An Etymological Dictionary of Astronomy and Astrophysics

The property of some crystals of exhibiting three different colors when viewed from three different directions under white lights. → dichroism.

Etymology (EN): From Gk. tri- “three” + chroic, from chroma “color” + -ism.

Etymology (PE): Sefâmi, from se, → three, + fâm “color,”

• -i noun suffix.