Webster's Dictionary, 1913

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Lustic adjective Lusty; vigorous. [ Obsolete]

Lustihead noun [ Lusty + -head .] See Lustihood . [ Obsolete] Chaucer.

Lustihood noun [ Lusty + -hood .] State of being lusty; vigor of body. " Full of lustihood ." Tennyson.

Lustily adverb In a lusty or vigorous manner.

Lustiness noun State of being lusty; vigor; strength.

Lustless adjective [ CF. Listless .]
1. Lacking vigor; weak; spiritless. [ Obsolete] Spenser.

2. Free from sexual lust.

Lustral adjective [ Latin lustralis , from lustrum : confer French lustral . See Lustrum .]
1. Of or pertaining to, or used for, purification; as, lustral days; lustral water.

2. Of or pertaining to a lustrum.

Lustrate transitive verb [ imperfect & past participle Lustrated ; present participle & verbal noun Lustrating .] [ Latin lustratus , past participle of lustrare to lustrate, from lustrum . See Lustrum .] To make clear or pure by means of a propitiatory offering; to purify.

We must purge, and cleanse, and lustrate the whole city.

Lustration noun [ Latin lustratio : confer French lustration .]
1. The act of lustrating or purifying.

And holy water for lustration bring.

2. (Antiq.) A sacrifice, or ceremony, by which cities, fields, armies, or people, defiled by crimes, pestilence, or other cause of uncleanness, were purified.

Lustre noun Same as Luster .

Lustrical adjective [ Latin lustricus , from lustrum . See Lustrum .] Pertaining to, or used for, purification.

Lustring noun [ French lustrine , Italian lustrino , from lustrare to polish, Latin lustrare . See 3d Luster , and confer Lutestring .] A kind of glossy silk fabric. See Lutestring .

Lustrous adjective [ Confer French lustreux . See 3d Luster .] Bright; shining; luminous. " Good sparks and lustrous ." Shak. -- Lus"trous*ly , adverb

Lustrum noun ; plural English Lustrums , Latin Lustra . [ Latin Confer 2d & 3d Luster .] A lustration or purification, especially the purification of the whole Roman people, which was made by the censors once in five years. Hence: A period of five years.

Lustwort noun (Botany) See Sundew .

Lusty adjective [ Compar. Lustier ; superl. Lustiest .] [ From Lust . See Lust , and confer Luscious .]

1. Exhibiting lust or vigor; stout; strong; vigorous; robust; healthful; able of body.

Neither would their old men, so many as were yet vigorous and lusty , be left at home.

2. Beautiful; handsome; pleasant. [ Obsolete] Spenser.

3. Of large size; big. [ Obsolete] " Three lusty vessels." Evelyn. Hence, sometimes, pregnant. [ Obsolete or Prov.]

4. Lustful; lascivious. [ Obsolete] Milton.

Lusus naturæ [ Latin , from lusus sport + naturae , gen. of natura nature.] Sport or freak of nature; a deformed or unnatural production.

Lutanist noun [ Late Latin lutanista , from lutana lute. See Lute the instrument.] A person that plays on the lute. Johnson.

Lutarious adjective [ Latin lutarius from lutum mud.] Of, pertaining to, or like, mud; living in mud. [ Obsolete] Grew.

Lutation noun [ Latin lutare , lutatum , to bedaub with mud, from lutum mud: confer French lutation .] The act or method of luting vessels.

Lute noun [ Latin lutum mud, clay: confer Old French lut .]
1. (Chemistry) A cement of clay or other tenacious infusible substance for sealing joints in apparatus, or the mouths of vessels or tubes, or for coating the bodies of retorts, etc., when exposed to heat; -- called also luting .

2. A packing ring, as of rubber, for fruit jars, etc.

3. (Brick Making) A straight-edged piece of wood for striking off superfluous clay from mold.

Lute transitive verb [ imperfect & past participle Luted ; present participle & verbal noun Luting .] To close or seal with lute; as, to lute on the cover of a crucible; to lute a joint.

Lute noun [ Old French leut , French luth ; skin to Pr. laút , Italian liúto , leúto , Spanish laúd , Portuguese alaude ; all from Arabic al'...d ; al the + '...d wood, timber, trunk or branch of a tree, staff, stick, wood of aloes, lute or harp.] (Mus.) A stringed instrument formerly much in use. It consists of four parts, namely, the table or front, the body, having nine or ten ribs or "sides," arranged like the divisions of a melon, the neck, which has nine or ten frets or divisions, and the head, or cross, in which the screws for tuning are inserted. The strings are struck with the right hand, and with the left the stops are pressed.

Lute intransitive verb To sound, as a lute. Piers Plowman. Keats.

Lute transitive verb To play on a lute, or as on a lute.

Knaves are men
That lute and flute fantastic tenderness.

Lute-backed adjective Having a curved spine.

Lutecium noun (Chemistry) A metallic element separated from ytterbium in 1907, by Urbain in Paris and by von Welsbach in Vienna. Symbol, Lu ; at. wt. 174.0.

Luteic adjective (Chemistry) (a) Pertaining to, or derived from, weld ( Reseda luteola ). (b) Pertaining to, or designating, an acid resembling luteolin, but obtained from the flowers of Euphorbia cyparissias .

Lutein noun [ From corpus lute um.] (Physiol. Chem.) A substance of a strongly marked yellow color, extracted from the yelk of eggs, and from the tissue of the corpus luteum.

Lutenist noun Same as Lutanist .

Luteo- [ Latin luteus .] (Chemistry) A combining form signifying orange yellow or brownish yellow .

Luteocobaltic adjective (Chemistry) Pertaining to, or designating, certain compounds of cobalt having a yellow color. Confer Cobaltic .

Luteocobaltic chloride (Chemistry) , a brilliant reddish yellow crystalline compound, Co 2 Cl 6 (NH 3 ) 12 , obtained by the action of ammonium chloride on an ammoniacal solution of cobaltic chloride.

Luteolin noun [ From New Latin Reseda luteola , from Latin luteolus yellowish, from luteus : confer French lutéoline . See Luteous .] (Chemistry) A yellow dyestuff obtained from the foliage of the dyer's broom ( Reseda luteola ).

Luteous adjective [ Latin luteus , from lutum dyer's broom, weld, which is used as a yellow dye.] Yellowish; more or less like buff.

Luter noun [ From 3d Lute .] One who plays on a lute.

Luter noun [ From Ist Lute .] One who applies lute.

Lutescent adjective [ Latin luteus yellow.] Of a yellowish color.

Lutestring noun [ Corrupted from lustring .] A plain, stout, lustrous silk, used for ladies' dresses and for ribbon. Goldsmith.

Luth noun [ French] (Zoology) The leatherback.

Lutheran adjective (Eccl. Hist.) Of or pertaining to Luther ; adhering to the doctrines of Luther or the Lutheran Church.

Lutheran noun (Eccl. Hist.) One who accepts or adheres to the doctrines of Luther or the Lutheran Church.

Lutheranism, Lutherism noun The doctrines taught by Luther or held by the Lutheran Church.

Luthern noun [ French lucarne a dormer, dormer window, garret window, Latin lucerna lamp, from lucere to be light or clear, from lux light. See Light , noun , and confer Lucarne .] (Architecture) A dormer window. See Dormer .

Lutidine noun [ From toluidine , by transposition.] (Chemistry) Any one of several metameric alkaloids, C 5 H 3 N.(CH 3 ) 2 , of the pyridine series, obtained from bone oil as liquids, and having peculiar pungent odors. These alkaloids are also called respectively dimethyl pyridine , ethyl pyridine , etc.

Luting noun (Chemistry) See Lute , a cement.

Lutist noun One who plays on a lute.

Lutose adjective [ Latin lutosus , from lutum mud.] Covered with clay; miry.

Lutulence noun The state or quality of being lutulent.

Lutulent adjective [ Latin lutulentus , from lutum mud.] Muddy; turbid; thick. [ Obsolete]

Luwack noun (Zoology) See Paradoxure .