| specimen chamber | <microscopy> The compartment located in the column of the electron microscope in which the specimen is placed for observation. (05 Aug 1998) |
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| specimen charge | <microscopy> The electrical charge resulting from the impingement of electrons on a nonconducting specimen. (05 Aug 1998) |
| specimen contamination | <microscopy> A change in the specimen caused by the condensation upon it of residual vapours in the microscope under the influence of electron bombardment. (05 Aug 1998) |
| specimen distortion | <microscopy> A physical change in the specimen caused by desiccation or heating by the electron beam. (05 Aug 1998) |
| specimen handling | Procedures for collecting, preserving, and transporting of specimens sufficiently stable to provide accurate and precise results suitable for clinical interpretation. (12 Dec 1998) |
| specimen holder | <microscopy> A device which supports the specimen and specimen screen in the correct position in the specimen chamber of the microscope. (05 Aug 1998) |
| specimen interaction | <microscopy> Reactions that occur inside the specimen when being struck with a beam of energetic electrons or ions. (05 Aug 1998) |
| specimen interaction volume | <microscopy> The volume inside the specimen in which all specimen interactions occur during electron beam irradiation. (05 Aug 1998) |
| specimen screen | <microscopy> A disk of fine screen, usually 200-mesh stainless steel, copper, or nickel, which supports the replica or specimen support film for observation in the microscope. (05 Aug 1998) |
| specimen stage | <microscopy> The part of the microscope which supports the specimen holder and specimen in the microscope, and can be moved in a plane perpendicular to the optical axis from outside the column. (05 Aug 1998) |
| specious | 1. Presenting a pleasing appearance; pleasing in form or look; showy. "Some [serpents] specious and beautiful to the eye." (Bp. Richardson) "The rest, far greater part, Will deem in outward rites and specious forms Religion satisfied." (Milton) 2. Apparently right; superficially fair, just, or correct, but not so in reality; appearing well at first view; plausible; as, specious reasoning; a specious argument. "Misled for a moment by the specious names of religion, liberty, and property." (Macaulay) "In consequence of their greater command of specious expression." (J. Morley) Synonym: Plausible, showy, ostensible, colourable, feasible. See Plausible. Spe"xiously, Spe"ciousness. Origin: L. Speciosusgood-looking, beautiful, specious, fr. Species look, show, appearance; cf. F. Specoeux. See Species. Source: Websters Dictionary (01 Mar 1998) |
| speck | 1. A small discoloured place in or on anything, or a small place of a colour different from that of the main substance; a spot; a stain; a blemish; as, a speck on paper or loth; specks of decay in fruit. "Gray sand, with black specks." 2. A very small thing; a particle; a mite; as, specks of dust; he has not a speck of money. "Many bright specks bubble up along the blue Egean." (Landor) 3. <zoology> A small etheostomoid fish (Ulocentra stigmaea) common in the Eastern United States. Origin: OE. Spekke, AS. Specca; cf. LG. Spaak. Source: Websters Dictionary (01 Mar 1998) |
| speck finger | An infection caused by erysipelothrix rhusiopathiae that is almost wholly restricted to persons who in their occupation handle infected fish, shellfish, poultry, or meat. Three forms of this condition exist: a mild localised form manifested by local swelling and redness of the skin; a diffuse form that might present with fever; and a rare systemic form associated with endocarditis. (12 Dec 1998) |
| speckled | Marked or variegated with small spots of a different colour from that of the rest of the surface. <ethnology> Speckled Indians, the Pintos. Speckled trout. <zoology> The common American brook trout. See Trout. The rainbow trout. Source: Websters Dictionary (01 Mar 1998) |
| speckled-belly | <zoology> The gadwall. Source: Websters Dictionary (01 Mar 1998) |