- Absence of neurologic reflexes such as the knee jerk reaction.
* * *Absence of reflexes.- detrusor a. a failure of the detrusor muscle to have a reflex contraction even though the bladder has reached or exceeded its capacity.
* * *are·flex·ia .ā-ri-'flek-sē-ə n absence of reflexesare·flex·ic -'flek-sik adj
* * *are·flex·ia (a″re-flekґse-ə) [a-1 + reflex + -ia] absence of reflexes.
Medical dictionary. 2011.