Category: M
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Mutagenicity
The ability to cause or induce mutations.
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Micrococcus luteus
A small, spherical, gram-positive, aerobic bacterium, typically found in irregular clusters. This saprophytic and non-pathogenic microorganism is commonly present in soil, water, dust, and dairy products.
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Microcomedone
The initial phase of comedone development, characterized by a comedone so tiny that it can only be observed under a microscope.
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Mixed vaccine
A vaccine developed using multiple strains of bacteria.
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Molar tooth
One of the rear teeth that serve to grind food. In each quadrant of the human jaw, there are three molars positioned behind the premolars.
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Maximum and minimum thermometer.
A thermometer equipped with two connected tubes, each featuring markers that record the highest and lowest temperatures it has experienced.
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Mesial surface
The part of the tooth’s crown that faces the center line.
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Mucous stools
Stools that contain a significant amount of mucus, suggesting inflammation in the intestines.
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Meconium stools
The thick, greenish substance composed of mucous tissue cells, bile, lanugo hairs, and vernix caseosa that accumulates in the intestines and constitutes the initial bowel movement of a newborn, typically occurring three or four days after birth. This is a normal occurrence.
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Miliary sclerosis
Small patches of hardening found in the spinal cord in certain cases of pernicious anemia, paired with subacute combined degeneration of the spinal cord.