Silhouette (n.) A representation of the outlines of an object filled in with a black color; a profile portrait in black, such as a shadow appears to be.
Silhouette (v. t.) To represent by a silhouette; to project upon a background, so as to be like a silhouette.
Silica (n.) Silicon dioxide, SiO/. It constitutes ordinary quartz (also opal and tridymite), and is artifically prepared as a very fine, white, tasteless, inodorous powder.
Silicate (n.) A salt of silicic acid.
Silicated (a.) Combined or impregnated with silicon or silica; as, silicated hydrogen; silicated rocks.
Silicatization (n.) Silicification.
Silicea (n. pl.) Same as Silicoidea.
Siliceous (a.) Of or pertaining to silica; containing silica, or partaking of its nature.
Silicic (a.) Pertaining to, derived from, or resembling, silica; specifically, designating compounds of silicon; as, silicic acid.
Silicicalcareous (a.) Consisting of silica and calcareous matter.
Silicide (n.) A binary compound of silicon, or one regarded as binary.
Siliciferous (a.) Producing silica; united with silica.
Silicification (n.) Thae act or process of combining or impregnating with silicon or silica; the state of being so combined or impregnated; as, the silicification of wood.
Silicified (a.) Combined or impregnated with silicon or silica, especially the latter; as, silicified wood.
Silicified (imp. & p. p.) of Silicify
Silicifying (p. pr. & vb. n.) of Silicify
Silicify (v. t.) To convert into, or to impregnate with, silica, or with the compounds of silicon.
Silicify (v. i.) To become converted into silica, or to be impregnated with silica.
Silicioidea (n. pl.) Same as Silicoidea.
Silicious (a.) See Siliceous.
Silicispongiae (n. pl.) Same as Silicoidea.
Silicited (a.) Silicified.
Silicium (n.) See Silicon.
Siliciureted (a.) Combined or impregnated with silicon.
Silicle (n.) A seed vessel resembling a silique, but about as broad as it is long. See Silique.
Silico- () A combining form (also used adjectively) denoting the presence of silicon or its compounds; as, silicobenzoic, silicofluoride, etc.
Silicofluoric (a.) Containing, or composed of, silicon and fluorine; especially, denoting the compounds called silicofluorides.
Silicofluoride (n.) A fluosilicate; a salt of silicofluoric acid.
Silicoidea (n. pl.) An extensive order of Porifera, which includes those that have the skeleton composed mainly of siliceous fibers or spicules.
Silicon (n.) A nonmetalic element analogous to carbon. It always occurs combined in nature, and is artificially obtained in the free state, usually as a dark brown amorphous powder, or as a dark crystalline substance with a meetallic luster. Its oxide is silica, or common quartz, and in this form, or as silicates, it is, next to oxygen, the most abundant element of the earth's crust. Silicon is characteristically the element of the mineral kingdom, as carbon is of the organic world. Symbol Si. Atomic weight 28. Called also silicium.
Silicotungstic (a.) Of, pertaining to, or designating, any one of a series of double acids of silicon and tungsten, known in the free state, and also in their salts (called silicotungstates).
Silicula (n.) A silicle.
Silicule (n.) A silicle.
Siliculose (a.) Bearing silicles; pertaining to, or resembling, silicles.
Siliculose (a.) Full of, or consisting of, husks; husky.
Siliginose (a.) Made of fine wheat.
Siling () a. & n. from Sile to strain.
Siliquae (pl. ) of Siliqua
Siliqua (n.) Same as Silique.
Siliqua (n.) A weight of four grains; a carat; -- a term used by jewelers, and refiners of gold.
Silique (n.) An oblong or elongated seed vessel, consisting of two valves with a dissepiment between, and opening by sutures at either margin. The seeds are attached to both edges of the dissepiment, alternately upon each side of it.
Siliqyiform (a.) Having the form of a silique.
Siliquosa (n. pl.) A Linnaean order of plants including those which bear siliques.
Siliquose (a.) Alt. of Siliquous
Siliquous (a.) Bearing siliques; as, siliquose plants; pertaining to, or resembling, siliques; as, siliquose capsules.
Silk (n.) The fine, soft thread produced by various species of caterpillars in forming the cocoons within which the worm is inclosed during the pupa state, especially that produced by the larvae of Bombyx mori.
Silk (n.) Hence, thread spun, or cloth woven, from the above-named material.
Silk (n.) That which resembles silk, as the filiform styles of the female flower of maize.
Silken (a.) Of or pertaining to silk; made of, or resembling, silk; as, silken cloth; a silken veil.
Silken (a.) Fig.: Soft; delicate; tender; smooth; as, silken language.
Silken (a.) Dressed in silk.
Silken (v. t.) To render silken or silklike.
Silkiness (n.) The quality or state of being silky or silken; softness and smoothness.
Silkiness (n.) Fig.: Effeminacy; weakness.
Silkmen (pl. ) of Silkman
Silkman (n.) A dealer in silks; a silk mercer.
Silkness (n.) Silkiness.
Silkweed (n.) Any plant of the genera Asclepias and Acerates whose seed vessels contain a long, silky down; milkweed.
Silkworm (n.) The larva of any one of numerous species of bombycid moths, which spins a large amount of strong silk in constructing its cocoon before changing to a pupa.
Silky (superl.) Of or pertaining to silk; made of, or resembling, silk; silken; silklike; as, a silky luster.
Silky (superl.) Hence, soft and smooth; as, silky wine.
Silky (superl.) Covered with soft hairs pressed close to the surface, as a leaf; sericeous.
Sill (n.) The basis or foundation of a thing; especially, a horizontal piece, as a timber, which forms the lower member of a frame, or supports a structure; as, the sills of a house, of a bridge, of a loom, and the like.
Sill (n.) The timber or stone at the foot of a door; the threshold.
Sill (n.) The timber or stone on which a window frame stands; or, the lowest piece in a window frame.
Sill (n.) The floor of a gallery or passage in a mine.
Sill (n.) A piece of timber across the bottom of a canal lock for the gates to shut against.
Sill (n.) The shaft or thill of a carriage.
Sill (n.) A young herring.
Sillabub (n.) A dish made by mixing wine or cider with milk, and thus forming a soft curd; also, sweetened cream, flavored with wine and beaten to a stiff froth.
Siller (n.) Silver.
Sillily (adv.) In a silly manner; foolishly.
Sillimanite (n.) Same as Fibrolite.
Silliness (n.) The quality or state of being silly.
Sillock (n.) The pollock, or coalfish.
Sillon (n.) A work raised in the middle of a wide ditch, to defend it.
Silly (n.) Happy; fortunate; blessed.
Silly (n.) Harmless; innocent; inoffensive.
Silly (n.) Weak; helpless; frail.
Silly (n.) Rustic; plain; simple; humble.
Silly (n.) Weak in intellect; destitute of ordinary strength of mind; foolish; witless; simple; as, a silly woman.
Silly (n.) Proceeding from want of understanding or common judgment; characterized by weakness or folly; unwise; absurd; stupid; as, silly conduct; a silly question.
Sillyhow (a.) A caul. See Caul, n., 3.
Silo (n.) A pit or vat for packing away green fodder for winter use so as to exclude air and outside moisture. See Ensilage.
Silt (n.) Mud or fine earth deposited from running or standing water.
Silted (imp. & p. p.) of Silt
Silting (p. pr. & vb. n.) of Silt
Silt (v. t.) To choke, fill, or obstruct with silt or mud.
Silt (v. i.) To flow through crevices; to percolate.
Silty (a.) Full of silt; resembling silt.
Silure (n.) A fish of the genus Silurus, as the sheatfish; a siluroid.
Silurian (a.) Of or pertaining to the country of the ancient Silures; -- a term applied to the earliest of the Paleozoic eras, and also to the strata of the era, because most plainly developed in that country.
Silurian (n.) The Silurian age.
Siluridan (n.) Any fish of the family Siluridae or of the order Siluroidei.
Siluroid (n.) Belonging to the Siluroidei, or Nematognathi, an order of fishes including numerous species, among which are the American catfishes and numerous allied fresh-water species of the Old World, as the sheatfish (Silurus glanis) of Europe.
Siluroid (n.) A siluroid fish.
Siluroidei (n. pl.) An order of fishes, the Nematognathi.
Silurus (n.) A genus of large malacopterygious fishes of the order Siluroidei. They inhabit the inland waters of Europe and Asia.
Silvas (pl. ) of Silva
Silvae (pl. ) of Silva