A specimen is a portion or quantity of material for use in testing, examination, or study. Biology A laboratory specimen is an individual animal, part of an animal, plant, part of a plant, or microorganism used as a representative to study the properties of the whole population of that species or subspecies. When a taxon is described, it is typically based on a single specimen, then referred to as the holotype.
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specimen A small quantity of a product, typically provided to test that product before obtaining a greater quantity of it.