|kriptō+ noun
( -s )
Etymology: International Scientific Vocabulary crypt- + perthite; originally formed as German kryptoperthit
: a perthite with lamellae of submicroscopic dimensions, such lamellae being observable by X-ray diffraction or by the electron microscope
• cryp·to·perthitic | ̷ ̷ ̷ ̷+ adjective