Definitions

from The Century Dictionary.

  • noun The bullfinch, Pyrrhula vulgaris. Also olp and blood-olp.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Zoöl.), Prov. Eng. The European bullfinch.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun The European bullfinch.

Etymologies

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Examples

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  • An empirical unit of indoor odor intensity (from the Latin olfacere, to smell) introduced by Danish scientist P.O. Fanger in 1988. One olf is the odor intensity produced by one "standard" person (a "standard person" is also defined). The pollution in ventilated, enclosed spaces is measured in decipols--the perceived odor intensity level in a space having an odor source of strength one olf and ventilation at the rate of 10 liters/second with unpolluted air. Measurements were recorded by human observers using protocols laid out by Fanger and colleagues.

    November 7, 2007

  • A smoker has been reported as being about six olf even when not actually smoking.

    (Jeremy Colls, "Air Pollution", Oct 1, 2002, page 341)

    October 19, 2008