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One of three ancient divisions of a county in England; -- now called riding. [Written also riding.] Blackstone.

Having or designating teeth with three cusps or tubercles; tricuspid.

loped a smaller cone in front and another behind. Next, a cingulum was developed, and the three cones became arranged in a triangle, the two smaller cusps having moved to the outer side in upper and to the inner in lower molars. This primitive triangle is called the trigon or trigonid and this stage the tritubercular o…

Government by three in coalition or association; the term of such a government.

Being three in one; -- an epithet used to express the unity of a trinity of persons in the Godhead.

The active young larva of any oil beetle. It has feet armed with three claws, and is parasitic on bees. See Illust. of Oil beetle, under Oil.

Having a valence of three; capable of being combined with, substituted for, or compared with, three atoms of hydrogen; -- said of triad atoms or radicals; thus, nitrogen is trivalent in ammonia.

Anything having three valves, especially a shell.

Having three valves; three-valved.

signating, certain days allowed to the pretor for hearing causes, when be might speak the three characteristic words of his office, do, dico, addico. They were called dies fasti.

A weaver's knife. See Trevat. Knight. Trivet table, a table supported by three legs. Dryden.

One of the three liberal arts forming the trivium. [Obs.] Skelton. Wood.

The three " liberal" arts, grammar, logic, and rhetoric; -- being a triple way, as it were, to eloquence.

Occurring or appearing three times a week; thriceweekly; as, a triweekly newspaper. -- adv.

t of the trumpet kind, thought by some to be the ancient sackbut, consisting of a tube in three parts, bent twice upon itself and ending in a bell. The middle part, bent double, slips into the outer parts, as in a telescope, so that by change of the vibrating length any tone within the compass of the instrument (which…

Of or pertaining to the tropics; tropical. Tropic bird (Zoöl.), any one of three species of oceanic belonging to the genus Phaëthon, found chiefly in tropical seas. They are mostly white, and have two central tail feathers very long and slender. The yellow-billed tropic bird. Phaëthon flavirostris (called also boatswai…

rder; harmony; concord; fit disposition, temper, or humor; right mood. A child will learn three times as much when he is in tune, as when he . . . is dragged unwillingly to [his task]. Locke.

fabrics by causing the weft threads to pass over one and under two, or over one and under three or more, warp threads, instead of over one and under the next in regular succession, as in plain weaving.

A strong thread composed of two or three smaller threads or strands twisted together, and used for various purposes, as for binding small parcels, making nets, and the like; a small cord or string.

The sum of one; the number next greater than one, and next less than three; two units or objects.