orthopercussion

orthopercussion

 [or″tho-per-kush´un] percussion with the distal phalanx of the finger held perpendicularly to the body wall.

or·tho·per·cus·sion

(ōr'thō-pĕr-kŭsh'ŭn), Very light percussion of the chest, made in a sagittal direction (that is, anteroposteriorly, and not perpendicularly to the wall of the chest); used to determine the size of the heart, with the faint percussion sound disappearing when the heart is reached, even though that may be overlapped by a layer of the lung.

or·tho·per·cus·sion

(ōr'thō-pĕr-kŭsh'ŭn) Very light percussion of the chest, used to determine the size of the heart.