smear

A thin specimen for examination; it is usually prepared by spreading material uniformly onto a glass slide, fixing it, and staining it before examination.
- alimentary tract s. a group of cytologic specimens containing material from the mouth (oral s.), esophagus and stomach (gastric s.), duodenum (paraduodenal s.), and colon, obtained by specialized lavage techniques; used principally for the diagnosis of cancer of those areas.
- bronchoscopic s. SYN: lower respiratory tract s..
- buccal s. a cytologic s. containing material obtained by scraping the lateral buccal mucosa above the dentate line, smearing, and fixing immediately; used principally for determining somatic sex as indicated by the presence of the sex chromocenter (Barr body).
- cervical s. a generic name for different types of smears of the cervix uteri, e.g., ectocervical, endocervical, pancervical; used principally for cervical screening.
- cul-de-sac s. a cytologic specimen of material obtained by aspirating the pouch of Douglas from the posterior vaginal fornix and prepared by smearing, centrifuging, or filtering; used principally for ovarian cancer.
- cytologic s. a type of cytologic specimen made by smearing a sample (obtained by a variety of methods from a number of sites), then fixing it and staining it, usually with 95% ethyl alcohol and Papanicolaou stain. SYN: cytosmear.
- ectocervical s. a cytologic s. of material obtained from the ectocervix, usually by scraping; used principally for the diagnosis of late cervical cancers involving the ectocervix.
- endocervical s. a cytologic s. of material obtained from the endocervical canal by swab, aspiration, or scraping; used principally for the detection of early cervical cancer.
- endometrial s. a group of cytologic smears containing material obtained directly from the endometrium by aspiration, lavage, or brushing of the uterine cavity.
- fast s. a cytologic s. containing material from the vaginal pool and pancervical scrapings, mixed and prepared on one microscopic slide, smeared, and fixed immediately; used principally for routine screening of ovaries, endometrium, cervix, vagina, and hormonal states.
- lateral vaginal wall s. a cytologic s. containing material obtained by scraping the lateral wall of the vagina near the junction of its upper and middle third; used for cytohormonal evaluation.
- lower respiratory tract s. a group of cytologic specimens containing material from the lower respiratory tract and consisting mainly of sputum (spontaneous, induced) and material obtained at bronchoscopy (aspirated, lavaged, brushed); used for cytologic study of cancer and other diseases of the lungs. SYN: bronchoscopic s., sputum s..
- pancervical s. a cytologic s. of material obtained from the endocervical canal, external os, and ectocervix by scraping these areas with a properly designed cervical spatula; used principally for early cervical cancer detection.
- Pap s. a s. of vaginal or cervical cells obtained for cytological study. SYN: Papanicolaou s..
- Papanicolaou s. SYN: Pap s..
- urinary s. a group of cytologic specimens containing processed urine obtained from bladder, ureters, or renal pelvis; used for cytologic study of cancer and other diseases of the urinary tract.
- vaginal s. a s. of debris from the vaginal lumen of mammals, used to determine the stage of their reproductive cycle. It is most useful in subprimate mammals having short estrous cycles; nucleated epithelial cells and leukocytes prevail in the s. during diestrus and proestrus, and cornified cells during estrus.
- VCE s. a cytologic s. of material obtained from the vagina, ectocervix, and endocervix, smeared separately (in that order) on one slide, and fixed immediately; used principally for the detection of cervical cancer and identification of the sites of diseases of those areas, and for hormonal evaluation.

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smear 'smi(ə)r n material spread on a surface (as of a microscopic slide) also a preparation made by spreading material on a surface see PAP SMEAR, vaginal smear
smear vt to prepare as a smear for microscopic examination: make a smear of

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n.
a specimen of tissue or other material taken from part of the body and smeared on a microscope slide for examination. See cervical smear.

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(smēr) a specimen for microscopic study prepared by spreading the material across the glass slide.

Medical dictionary. 2011.

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  • Smear — (senkrechter, weißer Strich unter der Lichtquelle) Als Smear oder auch Smear Effekt bezeichnet man bei digitalen Kameras weiße Streifen im Bild, die bei besonders hellen Lichtquellen im Bildbereich auftreten. Wenn die Lichtquelle eine… …   Deutsch Wikipedia

  • smear — [smɪə ǁ smɪr] noun [countable] an attempt to harm someone by spreading untrue stories about them: • Was this just another political smear? • The media had launched a smear campaign against him. smear verb [transitive] : • Republicans were trying… …   Financial and business terms

  • smear´er — smear «smihr», verb, noun, adjective. –v.t. 1. to cover or stain with anything sticky, grease or dirty: »She smeared her fingers with jam. 2. to rub or spread (oil, grease, or paint): »to smear paint on one s hands. 3. to rub or wipe (a brush,… …   Useful english dictionary

  • smear|y — «SMIHR ee», adjective, smear|i|er, smear|i|est. 1. marked by a smear or smears; smeared. 2. tending to smear. –smear´i|ness …   Useful english dictionary

  • Smear — (sm[=e]r), v. t. [imp. & p. p. {Smeared} (sm[=e]rd); p. pr. & vb. n. {Smearing}.] [OE. smeren, smerien, AS. smierwan, smyrwan, fr. smeoru fat, grease; akin to D. smeren, OHG. smirwen, G. schmieren, Icel. smyrja to anoint. See {Smear}, n.] 1. To… …   The Collaborative International Dictionary of English

  • smear — [smir] vt. [ME smerien < OE smerian, to anoint, akin to Ger schmieren < IE base * smeru , grease > OIr smir, marrow & (prob.) L medulla, marrow] 1. to cover, daub, or soil with something greasy, sticky, or dirty 2. to apply or daub… …   English World dictionary

  • Smear — Smear, n. [OE. smere,. smeoru fat, grease; akin to D. smeer, G. schmeer, OHG. smero, Icel. smj[ o]r, Sw. & Dan. sm[ o]r butter, Goth. sma[ i]r[thorn]r fatness, smarna dung; cf. Lith. smarsas fat. Cf. {Smirch}.] 1. A fat, oily substance; oinment.… …   The Collaborative International Dictionary of English

  • smear — sb., en, smear, ene (undersøgelse af celler fra fx livmoderhalsen), i sms. smear , fx smearprøve …   Dansk ordbog

  • smear — (v.) O.E. smerian to anoint or rub with grease, oil, etc., from P.Gmc. *smerthan (Cf. O.N. smyrva, Dan. smère, Swed. smörja, Du. smeren, O.H.G. smirwen, Ger. schmieren to smear ), from PIE *smeru grease (Cf. Gk. myron …   Etymology dictionary

  • smear — [v1] rub on, spread over apply, bedaub, besmirch, blur, coat, cover, dab, daub, defile, dirty, discolor, overlay, overspread, patch, plaster, slop, smudge, soil, spatter, spray, sprinkle, stain, sully, taint, tar, tarnish; concepts 172,202,215… …   New thesaurus

  • smear — smear. См. мазок. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

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