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English

nonmetric

|non-met-ric|

C1

🇺🇸

/nɑnˈmɛtrɪk/

🇬🇧

/nɒnˈmɛtrɪk/

not based on a metric (not measured by a metric)

Etymology
Etymology Information

'nonmetric' originates from English, formed by the prefix 'non-' meaning 'not' attached to 'metric', where 'metric' ultimately comes from Greek 'metron' meaning 'measure' (via Latin/French).

Historical Evolution

'metric' derives from Greek 'metron' ('measure') → Late Latin/Medieval Latin 'metricus' → French 'métrique' → English 'metric'; the negating prefix 'non-' (from Old French/Latin 'non') was later combined to produce forms like 'non-metric' and then 'nonmetric'.

Meaning Changes

Initially it was a straightforward negation meaning 'not metric' (not based on measurement or not using the metric system); over time it has been used in specialized senses (e.g., 'nonmetric' in topology or data analysis) while retaining the core idea of 'not based on a metric.'

Meanings by Part of Speech

Adjective 1

not using the metric system of measurement (e.g., using inches or miles instead of meters or kilometers).

Many older maps show distances in nonmetric units such as miles and yards.

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Adjective 2

(Mathematics) Not metrizable; not possessing a metric (distance function) that defines its structure.

Researchers gave an example of a nonmetric topological space that cannot be derived from any distance function.

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Adjective 3

(Statistics / data analysis) Not based on a metric (interval/ratio) scale; relating to ordinal or qualitative relationships rather than true numerical distances (e.g., in nonmetric multidimensional scaling).

Nonmetric multidimensional scaling is often used when data are ordinal rather than interval-level.

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Last updated: 2025/09/10 11:55