*rigo*

See Beggar's ticks. [ 1913 Webster ]

‖n.; pl. Fingrigos [ So called in Jamaica. ] (Bot.) A prickly, climbing shrub of the genus Pisonia. The fruit is a kind of berry. [ 1913 Webster ]

{ a. [ L. frigorificus; frigus, frigoris, cold + facere to make: cf. F. frigorifique. ] Causing cold; producing or generating cold. Quincy. [ 1913 Webster ]

‖n. [ L., fr. inter between + terere, tritum, to rub. ] (Med.) A rubbing or chafing of the skin; especially, an abrasion or excoriation of the skin between folds, as in fat or neglected children. [ 1913 Webster ]

n. [ Mary + gold. ] (Bot.) A name for several plants with golden yellow blossoms, especially the Calendula officinalis (see Calendula), and the cultivated species of Tagetes. [ 1913 Webster ]

☞ There are several yellow-flowered plants of different genera bearing this name; as, the African marigold or French marigold of the genus Tagetes, of which several species and many varieties are found in gardens. They are mostly strong-smelling herbs from South America and Mexico: bur marigold, of the genus Bidens; corn marigold, of the genus Chrysanthemum (Chrysanthemum segetum, a pest in the cornfields of Italy); fig marigold, of the genus Mesembryanthemum; marsh marigold, of the genus Caltha (Caltha palustris), commonly known in America as the cowslip. See Marsh Marigold. [ 1913 Webster ]

Marigold window. (Arch.) See Rose window, under Rose. [ 1913 Webster ]

(Bot.) A perennial plant of the genus Caltha (Caltha palustris), growing in wet places and bearing bright yellow flowers. In the United States it is used as a pot herb under the name of cowslip. See Cowslip. [ 1913 Webster ]

a. Too rigorous; harsh. [ 1913 Webster ]

n. [ Pref. peri- + Gr. &unr_; productive organs. ] 1. (Bot.) (a) Any organ inclosing the essential organs of a flower; a perianth. (b) In mosses, the involucral bracts of a male flower. [ 1913 Webster ]

2. (Zool.) A sac which surrounds the generative bodies in the gonophore of a hydroid. [ 1913 Webster ]

‖n.; pl. Perigonia [ NL. ] Same as Perigone. [ 1913 Webster ]

[ From Périgord, a former province of France. ] A pie made of truffles, much esteemed by epicures. [ 1913 Webster ]

‖n. [ L., an itching, the itch, fr. prurire to itch. ] (Med.) A papular disease of the skin, of which intense itching is the chief symptom, the eruption scarcely differing from the healthy cuticle in color. [ 1913 Webster ]

n. [ OE. also ringol. Cf. Ring. ] A circle; hence, a diadem. [ Obs. ] Shak. [ 1913 Webster ]

n. [ Prob. fr. Rigolette, name of a girl in Eugene Sue's novel “Mystères de Paris.” ] A woman's light scarflike head covering, usually knit or crocheted of wool. [ Webster 1913 Suppl. ]

n. [ Corrupted fr. regal. ] A musical instrument formerly in use, consisting of several sticks bound together, but separated by beads, and played with a stick with a ball at its end. Moore (Encyc. of Music.). [ 1913 Webster ]

‖n. [ L. See Rigor., below. ] 1. Rigidity; stiffness. [ 1913 Webster ]

2. (ed.) A sense of chilliness, with contraction of the skin; a convulsive shuddering or tremor, as in the chill preceding a fever. [ 1913 Webster ]

‖
Rigor caloris ety>[ L., rigor of heat ] (Physiol.), a form of rigor mortis induced by heat, as when the muscle of a mammal is heated to about 50° C. -- ‖
Rigor mortis ety>[ L. , rigor of death ], death stiffening; the rigidity of the muscles that occurs at death and lasts till decomposition sets in. It is due to the formation of myosin by the coagulation of the contents of the individual muscle fibers. [ 1913 Webster ]

n. [ OE. rigour, OF. rigour, F. rigueur, from L. rigor, fr. rigere to be stiff. See Rigid. ] [ Written also rigour. ] 1. The becoming stiff or rigid; the state of being rigid; rigidity; stiffness; hardness. [ 1913 Webster ]

The rest his look
Bound with Gorgonian rigor not to move. Milton. [ 1913 Webster ]

2. (Med.) See 1st Rigor, 2. [ 1913 Webster ]

3. Severity of climate or season; inclemency; as, the rigor of the storm; the rigors of winter. [ 1913 Webster ]

4. Stiffness of opinion or temper; rugged sternness; hardness; relentless severity; hard-heartedness; cruelty. [ 1913 Webster ]

All his rigor is turned to grief and pity. Denham. [ 1913 Webster ]

If I shall be condemn'd
Upon surmises, . . . I tell you
'T is rigor and not law. Shak. [ 1913 Webster ]

5. Exactness without allowance, deviation, or indulgence; strictness; as, the rigor of criticism; to execute a law with rigor; to enforce moral duties with rigor; -- opposed to lenity. [ 1913 Webster ]

6. Severity of life; austerity; voluntary submission to pain, abstinence, or mortification. [ 1913 Webster ]

The prince lived in this convent with all the rigor and austerity of a capuchin. Addison. [ 1913 Webster ]

7. Violence; force; fury. [ Obs. ] [ 1913 Webster ]

Whose raging rigor neither steel nor brass could stay. Spenser. [ 1913 Webster ]

Syn. -- Stiffness; rigidness; inflexibility; severity; austerity; sternness; harshness; strictness; exactness. [ 1913 Webster ]

n. [ Cf. F. rigorisme. ] 1. Rigidity in principle or practice; strictness; -- opposed to laxity. [ 1913 Webster ]

2. Severity, as of style, or the like. Jefferson. [ 1913 Webster ]

3. (Ethics) Strictness in ethical principles; -- usually applied to ascetic ethics, and opposed to ethical latitudinarianism. [ Webster 1913 Suppl. ]

n. [ Cf. F. rigoriste. ] One who is rigorous; -- sometimes applied to an extreme Jansenist. [ 1913 Webster ]

a. [ F. rigoureux, LL. rigorosus. See Rigor. ] 1. Manifesting, exercising, or favoring rigor; allowing no abatement or mitigation; scrupulously accurate; exact; strict; severe; relentless; as, a rigorous officer of justice; a rigorous execution of law; a rigorous definition or demonstration. [ 1913 Webster ]

He shall be thrown down the Tarpeian Rock
With rigorous hands. Shak. [ 1913 Webster ]

We do not connect the scattered phenomena into their rigorous unity. De Quincey. [ 1913 Webster ]

2. Severe; intense; inclement; as, a rigorous winter. [ 1913 Webster ]

3. Violent. [ Obs. ] “Rigorous uproar.” Spenser. [ 1913 Webster ]

4. (Mathematics, Logic) Adhering scrupulously and exactly to accepted principles; hence, logically valid; as, a rigorous proof. [ PJC ]

Syn. -- Rigid; inflexible; unyielding; stiff; severe; austere; stern; harsh; strict; exact. [ 1913 Webster ]

-- Rig"or*ous*ly, adv. -- Rig"or*ous*ness, n. [ 1913 Webster ]

‖n. [ NL., fr. Gr. &unr_;&unr_;&unr_; to be full of strength. ] (Bot.) A condition of vegetation in which there is too abundant growth of the stem and leaves, accompanied by deficiency of flowers and fruit. [ 1913 Webster ]

a. [ Cf. F. strigueux. See Strigil. ] (Bot.) Set with stiff, straight bristles; hispid; as, a strigose leaf. [ 1913 Webster ]

a. (Bot.) Strigose. [ R. ] [ 1913 Webster ]

n. [ L. trigonum, Gr. &unr_;; &unr_; (see Tri-) + &unr_; a corner, angle: cf. F. trigone. ] [ 1913 Webster ]

1. A figure having three angles; a triangle. [ 1913 Webster ]

2. (Astrol.) (a) A division consisting of three signs. (b) Trine, an aspect of two planets distant 120 degrees from each other. Hutton. [ 1913 Webster ]

3. (Gr. & Rom. Antiq.) (a) A kind of triangular lyre or harp. (b) A kind of game at ball played by three persons standing at the angular points of a triangle. [ 1913 Webster ]

a. Having three angles, or corners; triangular; as, a trigonal stem, one having tree prominent longitudinal angles. [ 1913 Webster ]

[ 1913 Webster ]

‖n. [ F., literally, a trigon. ] (Anat.) A smooth triangular area on the inner surface of the bladder, limited by the apertures of the ureters and urethra. [ 1913 Webster ]

‖n. [ NL. See Trigon. So called in allusion to the triangular shape of some species. ] (Zool.) A genus of pearly bivalve shells, numerous extinct species of which are characteristic of the Mesozoic rocks. A few living species exist on the coast of Australia. [ 1913 Webster ]

4. (Zool.) The cutting region of the crown of an upper molar, usually the anterior part. That of a lower molar is the [ Webster 1913 Suppl. ]

a. [ Gr. &unr_; triangle + &unr_; horn. ] (Zool.) Having horns with three angles, like those of some species of goats. [ 1913 Webster ]

a. [ See Trigon; Odonto. ] See Trituberculy. [ Webster 1913 Suppl. ]

{ }[ Cf. F. trigonométrique. ] Of or pertaining to trigonometry; performed by the rules of trigonometry. [ 1913 Webster ]

--Trig`o*no*met"ric*al*ly, adv. [1913 Webster]

Trigonometrical curve, a curve one of whose coordinates is a trigonometric function of the other. --
Trigonometrical function. See under Function. --
Trigonometrical lines, lines which are employed in solving the different cases of plane and spherical trigonometry, as sines, tangents, secants, and the like. These lines, or the lengths of them, are trigonometrical functions of the arcs and angles to which they belong. --
Trigonometrical survey. See under Survey. [1913 Webster]

n.; pl. -tries [ Gr. &unr_; a triangle + -metry: cf. F. trigonométrie. See Trigon. ] 1. That branch of mathematics which treats of the relations of the sides and angles of triangles, which the methods of deducing from certain given parts other required parts, and also of the general relations which exist between the trigonometrical functions of arcs or angles. [ 1913 Webster ]

2. A treatise in this science. [ 1913 Webster ]

Analytical trigonometry, that branch of trigonometry which treats of the relations and properties of the trigonometrical functions. --
Plane trigonometry, and
Spherical trigonometry, those branches of trigonometry in which its principles are applied to plane triangles and spherical triangles respectively. [ 1913 Webster ]