the GNU version of the Collaborative International Dictionary of English
verb-intransitive. To beat rapidly and more strongly than usual; to throb; to bound with emotion or exertion; to pulsate violently; to flutter; -- said specifically of the heart when its action is abnormal, as from excitement.
The Century Dictionary and Cyclopedia
To beat or pulsate rapidly; throb; flutter or move with slight throbs (said specifically of the heart when it is characterized by an abnormal or excited movement); tremble; quiver.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
v. shake with fast, tremulous movements
v. cause to throb or beat rapidly
v. beat rapidly
Word Usage
"The ob-gyn uses two fingers to palpitate the organs inside while pressing on the patient's abdomen from the outside, the so-called bimanual exam."