Disambiguation: natural kinds

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at a glance Natural Kinds
Natural kinds are categories of things that share some essence (physical, chemical, etc.), e.g. being H2O. This essence can be used in explanations of the perceptible properties of members of the natural kind, e.g. transparency, melting point, etc. Information...
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fundamentals Kinds, Natural
A natural kind is a class of (relevantly) similar things; membership in that class is determined by the presence of a presumed underlying common nature. Natural kind terms like "oak," "water" or "tiger" refer to classes of things with theoretically interesting essences which may be unknown to us or...