Webster's Dictionary, 1913

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Thymol noun [ Thym e + -ol .] (Chemistry) A phenol derivative of cymene, C 10 H 13 .OH, isomeric with carvacrol, found in oil of thyme, and extracted as a white crystalline substance of a pleasant aromatic odor and strong antiseptic properties; -- called also hydroxy cymene .

Thymus adjective [ New Latin , from Greek qy`mos .] (Anat.) Of, pertaining to, or designating, the thymus gland. -- noun The thymus gland.

Thymus gland , or Thymus body , a ductless gland in the throat, or in the neighboring region, of nearly all vertebrates. In man and other mammals it is the throat, or neck, sweetbread, which lies in the upper part of the thorax and lower part of the throat. It is largest in fetal and early life, and disappears or becomes rudimentary in the adult.

Thymy adjective Abounding with thyme; fragrant; as, a thymy vale. Akenside.

Where'er a thymy bank he found,
He rolled upon the fragrant ground.
Gay.

Thyro- A combining form used in anatomy to indicate connection with , or relation to , the thyroid body or the thyroid cartilage ; as, thyro hyal.

Thyroarytenoid adjective (Anat.) Of or pertaining to both the thyroid and arytenoid cartilages of the larynx.

Thyrohyal noun (Anat.) One of the lower segments in the hyoid arch, often consolidated with the body of the hyoid bone and forming one of its great horns, as in man.

Thyrohyoid adjective (Anat.) Of or pertaining to the thyroid cartilage of the larynx and the hyoid arch.

Thyroid adjective [ Greek ... shield-shaped; ... a large, oblong shield (from ... a door) + ... form: confer French thyroïde , thyréoïde .]
1. Shaped like an oblong shield; shield-shaped; as, the thyroid cartilage.

2. (Anat.) Of or pertaining to the thyroid body, thyroid cartilage, or thyroid artery; thyroideal.

Thyroid cartilage . See under Larynx . - - Thyroid body , or Thyroid gland (Anat.) , a glandlike but ductless body, or pair of bodies, of unknown function, in the floor of the mouth or the region of the larynx. In man and most mammals it is a highly vascular organ, partly surrounding the base of the larynx and the upper part of the trachea. -- Thyroid dislocation (Surg.) , dislocation of the thigh bone into the thyroid foramen. -- Thyroid foramen , the obturator foramen.

Thyroideal adjective (Anat.) Thyroid.

Thyrotomy noun [ Thyro- + Greek ... to cut.] (Surg.) The operation of cutting into the thyroid cartilage.

Thyrse (thẽrs) noun [ Confer French thyrse .] A thyrsus.

Thyrsoid (thẽr"soid), Thyr*soid"al (thẽr*soid" a l) adjective [ Greek ...; ... thyrsus + ... form, shape: confer French thyrsoïde .] Having somewhat the form of a thyrsus.

Thyrsus noun ; plural Thyrsi . [ Latin , from Greek .... Confer Torso .]
1. A staff entwined with ivy, and surmounted by a pine cone, or by a bunch of vine or ivy leaves with grapes or berries. It is an attribute of Bacchus, and of the satyrs and others engaging in Bacchic rites.

A good to grow on graves
As twist about a thyrsus .
Mrs. Browning.

In my hand I bear
The thyrsus , tipped with fragrant cones of pine.
Longfellow.

2. (Botany) A species of inflorescence; a dense panicle, as in the lilac and horse-chestnut.

Thysanopter noun (Zoology) One of the Thysanoptera.

Thysanoptera noun plural [ New Latin , from Greek ... a fringe + ... a wing.] (Zoology) A division of insects, considered by some writers a distinct order, but regarded by others as belonging to the Hemiptera. They are all of small size, and have narrow, broadly fringed wings with rudimentary nervures. Most of the species feed upon the juices of plants, and some, as those which attack grain, are very injurious to crops. Called also Physopoda . See Thrips .

Thysanopteran noun (Zoology) One of the Thysanoptera.

Thysanopterous adjective Of or pertaining to the Thysanoptera.

Thysanura noun plural [ New Latin , from Greek ... fringe + ... tail.] (Zoology) An order of wingless hexapod insects which have setiform caudal appendages, either bent beneath the body to form a spring, or projecting as bristles. It comprises the Cinura, or bristletails, and the Collembola, or springtails. Called also Thysanoura . See Lepisma , and Podura .

Thysanuran noun (Zoology) One of the Thysanura. Also used adjectively.

Thysanurous adjective (Zoology) Of or pertaining to the Thysanura.

Thysbe noun [ New Latin , from Latin Thisbe maiden beloved by Pyramus, Greek ....] (Zoology) A common clearwing moth ( Hemaris thysbe ).

Thyself pron. An emphasized form of the personal pronoun of the second person; -- used as a subject commonly with thou ; as, thou thyself shalt go; that is, thou shalt go, and no other. It is sometimes used, especially in the predicate, without thou , and in the nominative as well as in the objective case.

Thyself shalt see the act.
Shak.

Ere I do thee, thou to thyself wast cruel.
Milton.

Tiar noun [ Confer French tiare . See Tiara .] A tiara. [ Poetic] Milton. Tennyson.

Tiara noun [ Latin , from Greek ..., ...; of Persian origin.]
1. A form of headdress worn by the ancient Persians. According to Xenophon, the royal tiara was encircled with a diadem, and was high and erect, while those of the people were flexible, or had rims turned over.

2. The pope's triple crown. It was at first a round, high cap, but was afterward encompassed with a crown, subsequently with a second, and finally with a third. Fig.: The papal dignity.

Tiaraed adjective Adorned with, or wearing, a tiara.

Tib-cat noun A female cat. [ Prov. Eng.] Halliwell.

Tibia noun ; plural Tibiæ . [ Latin ]
1. (Anat.) The inner, or preaxial, and usually the larger, of the two bones of the leg or hind limb below the knee.

2. (Zoology) The fourth joint of the leg of an insect. See Illust. under Coleoptera , and under Hexapoda .

3. (Antiq.) A musical instrument of the flute kind, originally made of the leg bone of an animal.

Tibial adjective [ Latin tibialis , from tibia the shin bone; also, a pipe or flute, originally made of a bone: confer French tibial .]
1. Of or pertaining to a tibia.

2. Of or pertaining to a pipe or flute.

Tibial spur (Zoology) , a spine frequently borne on the tibia of insects. See Illust. under Coleoptera .

Tibial noun (Anat.) A tibial bone; a tibiale.

Tibiale noun ; plural Tibialia . [ New Latin ] (Anat.) The bone or cartilage of the tarsus which articulates with the tibia and corresponds to a part of the astragalus in man and most mammals.

Tibicinate intransitive verb [ Latin tibicinare .] To play on a tibia, or pipe. [ R.]

Tibio- A combining form used in anatomy to indicate connection with , or relation to , the tibia ; as, tibio tarsus, tibio fibular.

Tibiotarsal adjective (Anat.) (a) Of or pertaining to both to the tibia and the tarsus; as, the tibiotarsal articulation. (b) Of or pertaining to the tibiotarsus.

Tibiotarsus noun ; plural Tibiotarsi (Anat.) The large bone between the femur and tarsometatarsus in the leg of a bird. It is formed by the union of the proximal part of the tarsus with the tibia.

Tibrie noun (Zoology) The pollack. [ Prov. Eng.]

Tic noun [ French] (Medicine) A local and habitual convulsive motion of certain muscles; especially, such a motion of some of the muscles of the face; twitching; velication; -- called also spasmodic tic . Dunglison.

Tic douloureux [ French, from tic a knack, a twitching + douloureux painful.] (Medicine) Neuralgia in the face; face ague. See under Face .

Tical noun
1. A bean-shaped coin of Siam, worth about sixty cents; also, a weight equal to 236 grains troy. Malcom.

2. A money of account in China, reckoning at about $1.60; also, a weight of about four ounces avoirdupois.

Tice transitive verb [ Aphetic form of entice .] To entice. [ Obsolete] The Coronation.

Tice noun (Cricket) A ball bowled to strike the ground about a bat's length in front of the wicket.

Ticement noun Enticement. [ Obsolete]

Tichorrhine noun [ Greek ... a wall + ..., ..., the nose.] (Paleon.) A fossil rhinoceros with a vertical bony medial septum supporting the nose; the hairy rhinoceros.

Tick noun [ Abbrev. from ticket .] Credit; trust; as, to buy on, or upon, tick .

Tick intransitive verb
1. To go on trust, or credit.

2. To give tick; to trust.

Tick noun [ Middle English tike , teke ; akin to Dutch teek , German zecke . Confer Tike a tick.] (Zoology) (a) Any one of numerous species of large parasitic mites which attach themselves to, and suck the blood of, cattle, dogs, and many other animals. When filled with blood they become ovate, much swollen, and usually livid red in color. Some of the species often attach themselves to the human body. The young are active and have at first but six legs. (b) Any one of several species of dipterous insects having a flattened and usually wingless body, as the bird ticks (see under Bird ) and sheep tick (see under Sheep ).

Tick bean , a small bean used for feeding horses and other animals. -- Tick trefoil (Botany) , a name given to many plants of the leguminous genus Desmodium , which have trifoliate leaves, and joined pods roughened with minute hooked hairs by which the joints adhere to clothing and to the fleece of sheep.

Tick noun [ Late Latin techa , teca , Latin theca case, Greek ..., from ... to put. See Thesis .]
1. The cover, or case, of a bed, mattress, etc., which contains the straw, feathers, hair, or other filling.

2. Ticking. See Ticking , noun

Tick intransitive verb [ imperfect & past participle Ticked ; present participle & verbal noun Ticking .] [ Probably of imitative origin; confer Dutch tikken , LG. ticken .]
1. To make a small or repeating noise by beating or otherwise, as a watch does; to beat.

2. To strike gently; to pat.

Stand not ticking and toying at the branches.
Latimer.

Tick noun
1. A quick, audible beat, as of a clock.

2. Any small mark intended to direct attention to something, or to serve as a check. Dickens.

3. (Zoology) The whinchat; -- so called from its note. [ Prov. Eng.]

Death tick . (Zoology) See Deathwatch .

Tick transitive verb To check off by means of a tick or any small mark; to score.

When I had got all my responsibilities down upon my list, I compared each with the bill and ticked it off.
Dickens.

Ticken noun See Ticking . [ R.] R. Browning.