What's the adjective for reflex? Here's the word you're looking for.
Included below are past participle and present participle forms for the
verbs reflex and reflexivize which may be used as adjectives within certain contexts.
reflexive
(grammar) Referring back to the subject, or having an object equal to the subject.
(set theory) Of a relation R on a set S, such that xRx for all members x of S (that is, the relation holds between any element of the set and itself).
(geometry, of an angle) Having greater than 180 degrees but less than 360 degrees.
(photography) Of a camera or camera mechanism, using a mirror to reflect the image onto a ground-glass viewfinder, allowing the photographer to see it up to the moment of exposure.