| blastocystis | A genus of protozoa of the suborder blastocystina. It was first classified as a yeast but further studies have shown it to be a protozoan. (12 Dec 1998) |
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| blastocystis hominis | A species of parasitic protozoa found in the intestines of humans and other primates. It was classified as a yeast in 1912. Over the years, questions arose about this designation. In 1967, many physiological and morphological b. Hominis characteristics were reported that fit a protozoan classification. Since that time, other papers have corroborated this work and the organism is now recognised as a protozoan parasite of humans causing intestinal disease with potentially disabling symptoms. (12 Dec 1998) |
| blastocystis infections | Infections with protozoa of the genus blastocystis. The species b. Hominis is responsible for most infections. Surveys have generally found small numbers of this species in human stools submitted for parasitologic studies, with higher positivity rates and organism numbers being reported in aids patients and patients with other immunosuppressive diseases. Symptoms include abdominal pain, diarrhoea, constipation, vomiting, and fatigue. (12 Dec 1998) |
| blastocyte | An undifferentiated blastomere of the morula or blastula stage of an embryo. Origin: blasto-+ G. Kytos, cell (05 Mar 2000) |
| blastocytoma | <tumour> A neoplasm composed chiefly or entirely of immature undifferentiated cells (i.e., blast forms), with little or virtually no stroma. Synonym: blastocytoma, embryonal carcinosarcoma. Origin: blasto-+ G. -oma, tumour (05 Mar 2000) |
| blastoderm | In many eggs with a large amount of yolk, cell division (cleavage) is restricted to a superficial layer of the fertilized egg (meroblastic cleavage). This layer is termed the blastoderm. In birds it is a flat disc of cells at one pole of the egg and in insects an outer layer of cells surrounding the yolk mass. (18 Nov 1997) |
| blastodermal | Relating to the blastoderm. (05 Mar 2000) |
| blastodermic disk | The aggregation of blastomeres of a telolecithal ovum after cleavage has occurred. (05 Mar 2000) |
| blastodermic ectoderm | External layer of the blastula. (05 Mar 2000) |
| blastodermic layers | The primordial cell layer's on the yolk surface of a telolecithal egg; in the earliest stages they consist of protoderm, and they later differentiate into ectoderm, endoderm, and mesoderm. (05 Mar 2000) |
| blastodermic vesicle | In mammalian development, cleavage produces a thin walled hollow sphere, whose wall is the trophoblast, with the embryo proper being represented by a mass of cells at one side. The blastocyst is formed before implantation and is equivalent to the blastula. (18 Nov 1997) |
| blastodisk | 1. The disk of active cytoplasm at the animal pole of a telolecithal egg. 2. The blastoderm, especially in very young stages when its extent is small. (05 Mar 2000) |
| blastogenesis | <biology> Multiplication or increase by gemmation or budding. Origin: Gr. Sprout + E. Genesis. Source: Websters Dictionary (01 Mar 1998) |
| blastogenic | Relating to blastogenesis. (05 Mar 2000) |
| blastoid | <zoology> One of the Blastoidea. Source: Websters Dictionary (01 Mar 1998) |
Synonyms : Blood Flow Velocities, Flow Velocities, Blood, Flow Velocity, Blood, Velocities, Blood Flow, Velocity, Blood Flow
Synonyms : Analysis, Blood Gas, Analyses, Blood Gas, Blood Gas Analyses, Gas Analyses, Blood, Gas Analysis, Blood
Synonyms : PtcO2, TcPCO2, Capnometries, Transcutaneous, Capnometry, Transcutaneous, Cutaneous Oximetries, Oximetries, Cutaneous, Oximetries, Transcutaneous, Oximetry, Cutaneous, Transcutaneous Capnometries, Transcutaneous Oximetries
Synonyms : Sugar, Blood
Synonyms : Glucose, Blood, Self Monitoring, Glucose, Blood, Self-Monitoring, Blood Glucose Self Monitoring, Blood Glucose Self-Monitorings, Blood Sugar Self Monitoring, Blood Sugar Self-Monitorings, Glucose Self-Monitoring, Blood, Glucose Self-Monitorings, Blood
| bleaching powder |
a white powder comprised of calcium hydroxide and chloride and hypochlorite and used to bleach and/or disinfect
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| bleb |
blister: (pathology) an elevation of the skin filled with serous fluid
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| blood cell |
either of two types of cells (erythrocytes and leukocytes) and sometimes including platelets
출처: wordnet.princeton.edu/perl/webwn
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| black |
being of the achromatic color of maximum darkness; having little or no hue owing to absorption of almost all incident light; "black leather jackets"; "as black as coal"; "rich black soil" of or belonging to a racial group having dark skin especially of sub-Saharan African origin; "a great people--a black people--...injected new meaning and dignity into the veins of civilization"- Martin Luther King Jr. marked by anger or resentment or hostility; "black looks"; "black words" stemming from evil characteristics or forces; wicked or dishonorable; "black deeds"; "a black lie"; "his black heart has concocted yet another black deed"; "Darth Vader of the dark side"; "a dark purpose"; "dark undercurrents of ethnic hostility"; "the scheme of some sinister intelligence bent on punishing him"-Thomas Hardy offering little or no hope; "the future looked black"; "prospects were bleak"; "Life in the Aran Islands has always been bleak and difficult"- J.M.Synge; "took a dim view of things" (of events) having extremely unfortunate or dire consequences; bringing ruin; "the stock market crashed on Black Friday"; "a calamitous defeat"; "the battle was a disastrous end to a disastrous campaign"; "such doctrines, if true, would be absolutely fatal to my theory"- Charles Darwin; "it is fatal to enter any war without the will to win it"- Douglas MacArthur; "a fateful error" (of the face) made black especially as with suffused blood; "a face black with fury" extremely dark; "a black moonless night"; "through the pitch-black woods"; "it was pitch-dark in the cellar" the quality or state of the achromatic color of least lightness (bearing the least resemblance to white) harshly ironic or sinister; "black humor"; "a grim joke"; "grim laughter"; "fun ranging from slapstick clowning ... to savage mordant wit" total darkness: total absence of light; "they fumbled around in total darkness"; "in the black of night" (of intelligence operations) deliberately misleading; "black propaganda" British chemist who identified carbon dioxide and who formulated the concepts of specific heat and latent heat (1728-1799) bootleg: distributed or sold illicitly; "the black economy pays no taxes" popular child actress of the 1930's (born in 1928) (used of conduct or character) deserving or bringing disgrace or shame; "Man...has written one of his blackest records as a destroyer on the oceanic islands"- Rachel Carson; "an ignominious retreat"; "inglorious defeat"; "an opprobrious monument to human greed"; "a shameful display of cowardice" (of coffee) without cream or sugar a person with dark skin who comes from Africa (or whose ancestors came from Africa) dressed in black; "a black knight"; "black friars" (board games) the darker pieces black clothing (worn as a sign of mourning); "the widow wore black" soiled with dirt or soot; "with feet black from playing outdoors"; "his shirt was black within an hour" blacken: make or become black; "The smoke blackened the ceiling"; "The ceiling blackened"
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| blastosphere |
the blastula of mammals
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| BL | mountains in southwestern South Dakota and northeastern Wyoming |
|---|---|
| BL | a region of space resulting from the collapse of a star |
| BL | Old World willow with light green leaves cultivated for use in basketry |
| BL | ill-smelling European herb with rugose leaves and whorls of dark purple flowers |
| BL | low shrub of the eastern United States bearing shiny black edible fruit |
| BL | the juxtaposition of morbid and farcical elements (in writing or drama) to give a disturbing effect |
| BL | the juxtaposition of morbid and farcical elements (in writing or drama) to give a disturbing effect |
| BL | a thin coating of ice (as from freezing mist) on a road or sidewalk |
| BL | United States general who commanded the American Expeditionary Force in Europe during World War I (1860-1948) |
| BL | dark Old World kite feeding chiefly on carrion |
| BL | a weedy perennial with tough wiry stems and purple flowers |
| BL | disease of plum and cherry trees characterized by black excrescences on the branches |