All Words Glossary

Glossary of Microbiology Terms
beginning with letter P
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paramecium Tweet Definition of paramecium Like Definition of paramecium on Facebook
noun (parameci, a)
  1. A type of oval-shaped protozoan organism.
    • 1997: Edgar noticed that Clyde was wearing a necktie with a driblet deign. The little figures made him think of paramecia, sinister organisms with gullets and feeding grooves. " Don DeLillo?, Underworld
pasteurize Tweet Definition of pasteurize Like Definition of pasteurize on Facebook
verb (pasteuriz, ing)
  1. To heat food for the purpose of killing harmful organisms such as bacteria, viruses, protozoa, molds, and yeasts.
pathogen Tweet Definition of pathogen Like Definition of pathogen on Facebook
noun
  1. (context, pathology, immunology) Any organism or substance, especially a microorganism, capable of causing disease, such as bacteria, viruses, protozoa or fungus, fungi. Microorganisms are not considered to be pathogenic until they have reached a population size that is large enough to cause disease.
pericarp Tweet Definition of pericarp Like Definition of pericarp on Facebook
noun
  1. (botany) The outermost layer of a ripe fruit or ovary.
    1. used figuratively
    • 1974: He learned, afternoon after afternoon, how to edge her into delicious frenzies, how to tremble the clitoris, , and tip. " Guy Davenport, Tatlin!
phage Tweet Definition of phage Like Definition of phage on Facebook
noun
  1. (context, microbiology, virology) A virus that is parasitic to bacteria.
phytoplankton Tweet Definition of phytoplankton Like Definition of phytoplankton on Facebook
noun
  1. Small algae and fungi. They obtain energy by photosynthesis, and live mostly in the upper part of the sea, because they need light to survive.
plankton Tweet Definition of plankton Like Definition of plankton on Facebook
noun
  1. a generic term for all the microorganisms that float in the sea.
Proteus Tweet Definition of Proteus Like Definition of Proteus on Facebook
proper noun
  1. (Greek mythology) A sea god who could change his shape at will.
  2. (astronomy) The sixth satellite of the planet Neptune
protozoa Tweet Definition of protozoa Like Definition of protozoa on Facebook
noun
  1. (plural of, protozoan)
  2. (plural of, protozoon)
protozoan Tweet Definition of protozoan Like Definition of protozoan on Facebook
noun (pl.protozoa)
  1. (cytology) any of the diverse group of eukaryotes, of the phylum Protozoa, that are primarily unicellular, existing singly or aggregating into colonies, are usually nonphotosynthetic, and are often classified further into phyla according to their capacity for and means of motility, as by pseudopods, flagella, or cilia.
adjective
  1. of, pertaining to, or characteristic of a protozoan.
protozoon Tweet Definition of protozoon Like Definition of protozoon on Facebook
noun (Pluralprotozoa)
  1. (cytology) protozoan.
ptomaine Tweet Definition of ptomaine Like Definition of ptomaine on Facebook
noun
  1. (chemistry) any of various amines formed by putrefactive bacteria
  2. (dated) food poisoning
    • 1989: Sandwiches arrived from outside, strange granular bread, the butter on it liquid, some sort of beige meat paste that hinted at . " Margaret Atwood, Cat's Eye
putrefaction Tweet Definition of putrefaction Like Definition of putrefaction on Facebook
noun
  1. decomposition
  2. the anaerobic splitting of proteins by bacteria and fungi with the formation of foul-smelling incompletely oxidized products

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