🇪🇸Spanish Source WordCode: ES

parte por millón

Pronunciation / Transliteration: ˈpaɾ.te poɾ miˈʝon

🇬🇧 Direct English Meaning:
Parts-per-million/ˌpɑːrts pər ˈmɪl.jən/
nounCEFR B2 (Upper)Top #14500 frequency
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🇪🇸 Example Sentence in Spanish:

"Se midió la concentración en partes por millón."

Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    A unit of concentration used to measure very dilute concentrations of substances, representing one part of a given substance for every one million parts of the total mixture or solution.

    "The carbon dioxide concentration in the atmosphere has surpassed 420 parts-per-million."
  2. 2

    A dimensionless ratio used in engineering and science to express fractions on a one-in-a-million basis.

    "The water quality report indicated that the contaminant levels were well below one part-per-million."

Thesaurus & Semantic Spectrum

Synonyms (3)
Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Coined in scientific and technical English during the mid-20th century as an abbreviation of the phrase 'parts per million'. It combines the English noun 'part', the preposition 'per', and the numeral 'million' to quantify extremely dilute concentrations in chemistry and environmental science.

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