Scrabble?! PHOTORECEPTORS

Definitions of PHOTORECEPTORS in various dictionaries:

Photoreceptor can refer to: In anatomy/cell biology: Photoreceptor cell, a photosensitive cell in the retina of vertebrate eyes Simple eye in invertebrates (Ocellus), photoreceptor organ ("simple eye") of invertebrates often composed of a few sensory cells and a single lens Eyespot apparatus (microbial photoreceptor), the photoreceptor organelle of a unicellular organism that allows for phototaxisIn biochemistry: Photoreceptor protein, a chromoprotein that responds to being exposed to a certain wavelength of light by initiating a signal transduction cascade Photopigment, an unstable pigment that undergoes a physical or chemical change upon absorbing a particular wavelength of light; also see Photosynthetic pigment, molecules involved in transducing light into chemical energyIn technology: Photodetector or photosensor, a device that detects light by capturing photons Electronic photoreceptor, a sensor that converts solar energy into electric energyPhotoreceptors can detect the change of light and the change of color.