orienting reflex
[ ôr′ē-ĕn′tĭng ]
n.
An aspect of responding to environmental stimuli in which an organism's initial response to a change or novel stimulus makes the organism more sensitive to the stimulation, as when the pupil of the eye dilates in response to dim light.
orienting response
Words nearby orienting reflex
orientate,
orientation,
oriente,
orienteer,
orienteering,
orienting reflex,
orienting response,
orifice,
orifice meter,
orificium,
oriflamme