spheroplast medical definition
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spheroplast spher·o·plast. (sfîr′ə-plăst′, sfĕr′-) n. A bacterial cell whose cell wall has been degraded, often by the action of an antibiotic or a lysozyme, causing the cell to assume a spherical shape. spheroplast. (ˈsfɪərəʊˌplæst) n. (Biology) a bacteria or cell with a deficient cell wall.
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hemocytoblast Medical definition of hemocytoblast: a stem cell for blood-cellular elements; especially : one considered competent to produce all types of blood… a stem cell for blood-cellular elements; especially : one considered competent to produce all types of blood cell —called also lymphoidocyte… See the full definition
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erythroblastosis \-ˌsēz\play. : abnormal presence of erythroblasts in the circulating blood; especially : erythroblastosis fetalis.
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The A to Z of Medical Terms Looking for Hemocytoblast? Find out information about Hemocytoblast. A pluripotential blast cell thought to be capable of giving rise to all other blood cells. Also known as hemoblast; stem cell. one of the types of... Explanation of Hemocytoblast
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- amyloplast. (ăm`əlōplăst') , also called leucoplast, a nonpigmented organelle, or plastid, occurring in the cytoplasm of plant cells. Amyloplasts transform glucose, a simple sugar, into starch through the process of polymerization, and store starch grains within their stretched membranes.
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Medical Definition of Osteoclast The term osteoclast has a curious history. It was derived by putting osteo-(from the Greek osteon, bone) together with -clast (from the Greek klastos, broken). It was originally a surgical instrument used to fracture bones.
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- Bone spicule is a term found in osteology, in dental surgery and also in ophthalmology. It is most commonly used to define the bony matrix in the formation of new bone but is also used to describe a complication in dental surgery and a symptom of an eye disease. (Andreas Rodriguez/iStock/Getty Images) The formation of new bone begins with the development of a bony matrix made up of bone spicules.
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Medical Definition of Osteoblast Osteoblast: A cell that makes bone. It does so by producing a matrix that then becomes mineralized. Bone mass is maintained by a balance between the activity of osteoblasts that form bone and other cells called osteoclasts that break it down. Last Editorial Review: 5/13/2016.
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Spheroplast An E.coli spheroplast patched with a glass pipette. A spheroplast is a cell from which the cell wall has been almost completely removed, as by the action of penicillin. The name stems from the fact that after a microbe's cell wall is digested, membrane tension causes the cell to acquire a characteristic spherical shape.
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spheroplast Also found in: Dictionary, Encyclopedia, Wikipedia. spheroplast. a bacterial, yeast, or fungal cell that results after partial removal of the rigid cell wall, which forms a membrane-bound cell with a spherical shape that is dependent for its integrity on an isotonic or hypertonic medium.
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Lexic.us Definition of Spheroplasts. Medical Definition of Spheroplasts. 1. Bacterial, yeast, or fungal cells that result after partial removal of the rigid cell wall, which forms a membrane-bound cell with a spherical shape that is dependent for its integrity on an isotonic or hypertonic medium.
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- Definition of Spheroplasts. 1. spheroplast [n] - See also: spheroplast. Medical Definition of Spheroplasts. 1. Bacterial, yeast, or fungal cells that result after partial removal of the rigid cell wall, which forms a membrane-bound cell with a spherical shape that is dependent for its integrity on an isotonic or hypertonic medium.
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Steve Blum (Dempsey) autographing our Ray Gun and Perk-a-Colas We finally got to meet the voice of the badass Tank Dempsey! He gladly autographed our sodas and ray gun and took photos with us. Steve Blum is such an amazing guy. At Sacanime Winter 2014. Royalty free music from Kevin MacLeod (incompetech.com).
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Biology book1 chloroplast. A small green cell organelle found in the leaves and some stems of plants. Chloroplasts are the sites of photosynthesis. They possess a stroma and contain four pigments: chlorophyll a, chlorophyll b, carotene, and xanthophyll.
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chloroplast chloroplast a type of PLASTID containing CHLOROPHYLL found within the cells of plant leaves and stems. The chlorophyll is packed within granules called quantasomes which are located in the walls of flattened sacs called LAMELLAE or thylakoids.
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Spatial organization This article is concerned with spatial perception. For the aspect of animal behavior see: Spatial organisation (animal behavior) . Spatial organization is an aspect of spatial perception and concerns the perception of spatial relationships.
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- amyloplast. (ăm`əlōplăst') , also called leucoplast, a nonpigmented organelle, or plastid, occurring in the cytoplasm of plant cells.
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Definitions &Translations Here are all the possible meanings and translations of the word chloroplast. Princeton's WordNet(0.00 / 0 votes)Rate this definition: Wiktionary(3.00 / 3 votes)Rate this definition: chloroplast(Noun) An organelle found in the cells of green plants, and in photosynthetic algae, where photosynthesis takes place.
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spleen spleen in Medicine Expand. spleen (splēn) n. A large, highly vascular lymphoid organ, lying to the left of the stomach below the diaphragm and serving to store blood, disintegrate old blood cells, filter foreign substances from the blood, and to produce lymphocytes.
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- [spôr′yəlā′shən] Etymology: Gk, sporos + L, atus, process. 1 a type of reproduction that occurs in fungi, algae, and protozoa and involves the formation of spores by the spontaneous division of a cell into four or more daughter cells, each of which contains a part of the original nucleus.
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erythroblast In this usage, it is called also normoblast. 1  basophilic erythroblast a nucleated precursor in the erythrocytic series, preceding the polychromatophilic erythroblast and following the proerythroblast; the cytoplasm is basophilic, the nucleus is large with clumped chromatin, and the nucleoli have disappeared. Called also basophilic normoblast. orthochromatic erythroblast see normoblast. polychromatic erythroblast (polychromatophilic erythroblast) see normoblast. e·ryth·ro·blast (ĕ-rith'rō-blast), Originally, a term denoting all forms of human red blood cells containing a nucleus, both pathologic (that is, megaloblastic) and normal (for example, normoblastic).
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Ectoplasm Ectoplasm is a tar-like substance that only appears when encountering a very active and angry ghost. The ghost has to be very angry for ectoplasm to appear. It also gives off high EMF. The Winchesters have seen ectoplasm before the events of No Exit, only once or twice. This proves that this supernatural phenomenon is rare.
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- erythroblast - a nucleated cell in bone marrow from which red blood cells develop embryonic cell, formative cell - a cell of an embryo sideroblast - an erythroblast having granules of ferritin
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- pro·plas·tid (prō-plăs′tĭd) n. A cytoplasmic organelle from which a plastid develops. proplastid (prəʊˈplæstɪd) n (Botany) a plant cell organelle that a plastid develops from.
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Chloroplast Chloroplasts / ˈ k l ɔːr ə ˌ p l æ s t s, - p l ɑː s t s / are organelles, specialized compartments, in plant and algal cells. Their discovery inside plant cells is usually credited to Julius von Sachs (1832–1897), an influential botanist and author of standard botanical textbooks – sometimes called The Father of Plant Physiology.
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- Medical Definition of splanchnopleure. : a layer of tissue that consists of the inner of the two layers into which the unsegmented sheet of mesoderm splits in the embryo of a craniate vertebrate together with the endoderm internal to it and that forms most of the walls and substance of the visceral organs—compare somatopleure.