plural of hard sign

An oval sign attached to the back of a road vehicle to show the nationality of the vehicle.

(medicine) A sign of cholecystitis, etc. identified by the patient experiencing pain when the gall bladder is obstructed on the right-hand side while he/she breathes out.

The unilateral painless periorbital swelling associated with the acute stage of Chagas' disease.

A sign in chest radiography that represents a focus of oligemia seen distal to a pulmonary embolism.

plural of hash sign

The presence of pain when the abdominal wall is slowly compressed and rapidly released, indicative of peritonitis.

(medicine) A medical sign observed in patients with low calcium, whereby occlusion of the brachial artery induces spasm of the muscles of the hand and forearm.

(medicine) The characteristic situation where a patient with delusional parasitosis presents the doctor with a collection of fibers or other foreign objects supposedly retrieved from the skin.

A swelling of lymph nodes along the back of the neck, characteristic of the early phase of African trypanosomiasis, and suggestive of cerebral infection.