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Protoscience vs Undefined - What's the difference?

protoscience | undefined |

As a noun protoscience

is an unscientific field of study which later becomes a science (eg astrology becoming astronomy and alchemy becoming chemistry).

As an adjective undefined is

lacking a definition or value.

protoscience

English

Noun

(en noun)
  • An unscientific field of study which later becomes a science (e.g. astrology becoming astronomy and alchemy becoming chemistry).
  • A field of study at the initial phase of the scientific method, involving information gathering and hypothesis formulation, but is not yet falsifiable, or if it is, its predictions have not yet been observed.

    • undefined

    English

    Adjective

    (wikipedia undefined) (-)
  • Lacking a definition or value.
  • (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.
    • The result of division by zero is undefined .

    Antonyms

    * defined