retrodirective
[ re-troh-di-rek-tiv, -dahy- ]
/ ˌrɛ troʊ dɪˈrɛk tɪv, -daɪ- /
adjective Optics.
(of a mirror, reflector, etc.) having three reflecting surfaces so oriented that a ray of light is reflected in a direction parallel but opposite to its original direction.
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Words nearby retrodirective
retrocollic spasm, retroconduction, retrocursive, retrocuspid papilla, retrodeviation, retrodirective, retrodisplacement, retrofire, retrofit, retroflex, retroflexion
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021