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Noun 1. The branch of biology that deals with microorganisms, especially their effects on man and other living organisms. ( 2. Refers to the study of microscopic organisms, which are defined as any living organism that is either a single cell (unicellular), a cell cluster, or has no cells at all (acellular). Microbiology is a broad term which includes virology, mycology, parasitology, bacteriology, immunology and other branches. ( 3. The study of organisms that are too small to be seen with the naked eye, such as bacteria, viruses and yeasts. (   Word origin: From Greek μῑκρος, mīkros, “small”; βίος, bios, “life”; and -λογία,...

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/ˌmīkrōˈôrgəˌnizəm/ Noun, pl. microorganisms 1. An organism of microscopic or ultramicroscopic size (Merriam-Webster Online Dictionary)   Syn: microbe Word Origin: from the Greek: μικρός, mikrós, “small” and ὀργανισμός, organismós,...

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/ˈmīkrəˌskōp/ Noun, pl. microscopes 1. An instrument used to see objects that are too small for the naked eye. The science of investigating small objects using such an instrument is called microscopy. Microscopic means invisible to the eye unless aided by a microscope. ( 2. An optical instrument used for observing small objects. ( 3. Any instrument for imaging very small objects (such as an electron microscope). ( 4. A piece of laboratory equipment that is used to magnify small things that are too small to be seen by the naked eye, or too small for the details to be seen by the naked eye, so that their finer details can be seen and studied. Examples are the light (or optical) microscope, electron microscope, X-ray microscope, and acoustic microscope. Magnifier of the image of small objects; the invention of the microscope led to the discovery of the cell.An instrument that can be used to magnify the size of an object for study purposes, and is the instrument that can be used to investigate microorganisms and other Biological matter more closely. ( Word origin: From Modern Latin microscopium, literally “an instrument for viewing what is small,” from Greek micro- + –skopion, from skopein “to look,...

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/ˈmilˌd(y)o͞o/ Noun 1. A growth of minute powdery or webby fungi, whitish or of different colors, found on various diseased or decaying substances. ( 2. A fungi in the order Erysiphales. It is also used more generally to mean mold growth. ( 3. A whitish coating of minute fungal hyphae, growing on plants or damp organic material. (Google Dictionary) 4. Any of various fungi that form a superficial, usually whitish growth on plants and various organic materials. (The American Heritage® Dictionary of the English Language) 5. A superficial coating or discoloration of organic materials, such as cloth, paper, or leather, caused by fungi, especially under damp conditions. (The American Heritage® Dictionary of the English Language) 6. A plant disease caused by such fungi. (The American Heritage® Dictionary of the English Language) Verb 1. Affect or be affected with mildew. (Google Dictionary) Word origin: From Old English meledeaw “honeydew” (sticky stuff exuded by aphids), from Proto-Germanic compound of *melith “honey” + *dawwaz...

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