Part per million



noun

a unit of measure of the amount of dissolved solids in a solution in terms of a ratio between the number of parts of solids to a million parts of total volume; abbr. Ppm

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  • Partridge

    [pahr-trij] /ˈpɑr trɪdʒ/ noun, plural partridges (especially collectively) partridge. 1. any of several Old World gallinaceous game birds of the subfamily Perdicinae, especially Perdix perdix. 2. Chiefly Northern U.S. the ruffed grouse. 3. Chiefly South Midland and Southern U.S. . 4. any of several other North American gallinaceous game birds. 5. any of various South […]

  • Partridgeberry

    [pahr-trij-ber-ee] /ˈpɑr trɪdʒˌbɛr i/ noun, plural partridgeberries. 1. a North American trailing plant, Mitchella repens, of the madder family, having roundish evergreen leaves, fragrant white flowers, and scarlet . /ˈpɑːtrɪdʒˌbɛrɪ/ noun (pl) -ries 1. Also called boxberry, twinberry. a creeping woody rubiaceous plant, Mitchella repens, of E North America with small white fragrant flowers and […]



  • Partridge-pea

    noun 1. a North American plant, Cassia fasciculata, of the legume family, having yellow flowers and feathery compound leaves that fold shut when touched.

  • Parts

    [pahrt] /pɑrt/ noun 1. a portion or division of a whole that is separate or distinct; piece, fragment, fraction, or section; constituent: the rear part of the house; to glue the two parts together. 2. an essential or integral attribute or quality: a sense of humor is part of a healthy personality. 3. a section […]



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