Photoreceptor is a related term of photoreceptive.

In biology|lang=en terms the difference between photoreceptor and photoreceptive

is that photoreceptor is (biology) a specialized neuron able to detect, and react to light while photoreceptive is (biology) absorbing and using light, especially for sensory purposes.

As a noun photoreceptor

is (biology) a specialized neuron able to detect, and react to light.

As an adjective photoreceptive is

(biology) absorbing and using light, especially for sensory purposes.