• Webster's Revised Unabridged Dictionary
    • n Protyle (Chem. & Astron) The hypothetical homogeneous cosmic material of the original universe, supposed to have been differentiated into what are recognized as distinct chemical elements.
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Century Dictionary and Cyclopedia
    • n protyle An imagined supersensible, imponderable, indifferent, or primal substance, from which all forms of living matter are supposed to be derived by modification, differentiation, or specialization. Also called variously biod, biogen, zoëther, psychoplasm, etc.
    • n protyle A hypothetical form of primal, undifferentiated matter from which, it has been imagined, by granulation or segregation of minute but definite masses may have been produced the atoms of the various chemical elements.
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Webster's Revised Unabridged Dictionary
Proto-, + Gr. stuff, material


In literature:

This Earth is, in one sense, the Protyle for which the most advanced of our modern Chemists are searching as the One Mother Element.
"Simon Magus" by George Robert Stow Mead