Category: T

A synthetic drug used in the treatment of malaria. An antiseptic that is active against a range of microorganisms. It is used mainly in the treatment of chronic urinary-tract infections and malaria and is often administered, by mouth, in a combined preparation with sulfamethoxazole. Long-term treatment may cause depression of the bone marrow function. Trimethoprim…

An antihistamine used to relieve the itching caused by eczema and various skin rashes, including allergic skin rashes caused by poison ivy. An antihistamine drug (a phenothiazine derivative) that also possesses sedative properties. Given by mouth, it is mainly used in the treatment of pruritus (itching) and as a preoperative medication, especially in children. Common…

A condition in which the skull is in the shape of a triangle, with points on either side of the face in front of the ears. A deformity of the skull in which the vault of the skull is sharply angled just in front of the ears, giving the skull a triangular shape. The condition…

Inflammation of the bottom part of the wall of the bladder. Referring to a skull which shows signs of trigonocephaly. Inflammation of the trigone (base) of the urinary bladder. This can occur as part of a generalized cystitis or it can be associated with inflammation in the urethra, prostate, or neck of the womb. The…

A condition in which a finger can bend but is difficult to straighten, probably because of a nodule on the flexor tendon. A locking of the finger in a bent position, caused by a constriction of the tendon sheath. Trigger finger is a form of tenosynovitis, an inflammation of the thin lining of the sheath…

To start something happening. An event which forces another event to happen. Examples: a trigger could be written in legislation so that if health care costs increased beyond a specified rate of growth in a year, price controls would “automatically” be invoked; a billing system could have the sales tax “automatically” computed at a rate…

An irregular heartbeat, where a regular beat is followed by two ectopic beats. Occurrence of events in groups of three, especially three rapid heartbeats. A condition in which the heart beats can be subdivided into groups of three. The first beat is normal, but the second and third are premature beats.  

The fifth cranial nerve, formed of the ophthalmic nerve, the maxillary nerve and the mandibular nerve, which controls the sensory nerves in the forehead, face and chin, and the muscles in the jaw. The fifth and largest cranial nerve (V), which is split into three divisions: the ophthalmic, maxillary, and mandibular nerves. The motor fibers…

A sensory ganglion containing the cells of origin of the sensory fibres in the fifth cranial nerve. A ganglion on the sensory portion of the fifth cranial nerve.  

Spectacles which have three lenses combined in one piece of glass to give clear vision over different distances. Lenses in which there are three segments. The upper provides a clear image of distant objects; the lower is used for reading and close work; and the middle one for the intermediate distance. Musicians sometimes find the…