directional weakness

directional weakness

a right or left decrement of nystagmus, calculated from the responses to the binaural, bithermal caloric test.

di·rec·tion·al weak·ness

(dĭr-ek'shŭn-ăl wēk'nĕs) A right or left decrement of nystagmus, calculated from the responses to the binaural, bithermal caloric test.