thyroglossal duct

thyrolysin (thi-rol’is-in). A thyrolytic serum. thyrolytic (thi-ro-litv’ik) [thyroid + Gr. λύσις di olution]. Destruction of thyroid ti ue. thyron (thi’ron). A proprietary preparation from pigs’ thyroids; used like other thyroid prepara- tions. thyroncus (thi-rong’kus) [thyroid + Gr. (thi ro-nu’’kle-o-al-bu’- An instrument for cutting Marked by toxic A cytotoxin specific 1008 TICKLING tibial (tib’e-al) (L. sidie’lis). the tibia. tibiale (tib-e-a’le). A bone on the tibial side of the tarsus of the embryo, partly represented in the adult by the astragalus. tibial is (tib-e-a’lis). See muscles, table of. tibien (tib’e-en). Pertaining to the tibia alone or in itself. Of or pertaining to tibio-acce orius (tib’’e-o-ak-ses-o’re-us). See under muscles, lable of. tibiocalcanean (tib’’e-o-kal-ka’ne-an). _ Pertain- ing to the tibia and the calcaneus. tibiofemoral (tib’e-o-fem’or-al). the tibia and the femur. tibiofibular (tib’e-o-fib’u-lar). tibia and the fibula. tibionavicular (tib’e-o-nav-ik’u-lar). Pertaining to the tibia and the navicular or scaphoid bone. Pertaining to Pertaining to the tibioperoneal (tib’e-o-per-o-ne’al). Same as tabiofibular. tibioscaphoid (tib’’e-o-skaf‘oid). Tibionavicular. tibiotarsal (tib’c-o-tar’sal). tibia and the tarsus. tic (tik) [Fr]. 1. As formerly used, any spasmodic movement or twitching, as of the face. 2. As at present used, a psychoneurosis marked by quick, sudden spasms that are identical with the movements of volitional intent. Tics occur in persons of neurotic tendency, are often hereditary, and usually develop in youth. Called also mimic spasm, habit-spasm, and maladie des tics. t., salaam convulsions, or repeated bowing move- ments of the head. convulsive t., spasm of. those parts of the face supplied by the seventh nerve. degenerative t., tic occurring in connection with degeneration of the central nervous system. t. de peusée (deh pah- -sa), the habit of involuntarily expre ing ayy thought that happens to come to the mind. hragmatic t., spasmodic twitching nd ial — the diaphragm. Called also respiratory t. t. Gouloureux (dooloo-ro), a spasmodic facial neuralgia. fac’ spasm of the facial muscles. gesticulatory t., at marked by spasmodic movements resembling the gestures of an orator or an actor. habit t., habit spasm. See spasm. laryngeal t., that marked by a noisy expulsion of air through the glottis. local t., a tic affecting only a limited locality, as the eye. mimic t., facial tic. motor t., a tic which is marked only by the spasmodic movement without mental disturbance. It includes facial spasm, blepharospasm, respiratory, laryngeal, rotatory, and other varieties of tic. t. non-douloureux, myoclonus. progre ive choreic t., a chronic disease beginning in early life, marked by spasms which at first affect the neck muscles, but, as the disease advances, spread to the rest of the body. The disease ends fatally. psychomotor t., a tic that is accompanied with some mental disorder. It includes the peculiar habit-spasms of insanity that are attended with delusions or insane ideas—the peculiar conditions known as mental torticollis, latah, miryachit, palm us, and Gilles de la Tourette's disease, or dancing mania. respiratory t. See diaphragmatic ¢t. rotatory t. Same as rotatory spasm. See spasm. saltatory t., saltatory spasm; a nervous condition marked by rhythmic dancing or jumping movements whenever the patient stands. spasmodic t., a condition marked by spasmodic movements of groups of muscles occurring at irregular intervals. tick (tik). Any one of several species of Acarus. See Acarus and Ixodes. tickle (tik’el). To titillate; to produce in any subject the effect called tickling. tickling (tik’ling). Light stimulation of a sensitive surface, and its refiex effect, such as involuntary laughter, etc. Pertaining to the preparation of wild thyme. 4. An acrothymion: a rugose wart with a round top. acce ory t., a separated portion of the thymus gland. t. extract, a preparation of the thymus of animals: used therapeutically. intermal t., a body in either lobe of the thyroid of the cat. thymus-death. See thymustod. Thymustod (ti-moos-téd’) [Ger.]. Thymus-death; a fatal condition due to hypertrophy of the thymus, and marked by stridulous breathing, suffocation, dyspnea, and rapid death.