Betekenis van:
darkening

darkening
Zelfstandig naamwoord
  • het donker maken
  • changing to a darker color

Synoniemen

Hyperoniemen

Hyponiemen

darkening
Bijvoeglijk naamwoord
    • becoming dark or darker as from waning light or clouding over
    "the darkening sky"

    Werkwoord

    darkening
    een vervoeging van darken

    Voorbeeldzinnen

    1. ‘UVA protection factor’ means the ratio of the minimum UVA dose necessary to induce a persistent pigment darkening on the skin protected by a sunscreen product to the minimal UVA dose necessary to induce the minimal darkening effect on the same unprotected skin.
    2. Scientific findings show that certain biological damage to the skin can be prevented and reduced if the ratio of the protection factor measured in the persistent pigment darkening test (i.e. addressing mainly UVA radiation) is at least 1/3 of the factor measured by the sun protection factor testing method (i.e. addressing mainly UVB radiation).
    3. Therefore, the protection against UVA and UVB radiation should be related. Scientific findings show that certain biological damage to the skin can be prevented and reduced if the ratio of the protection factor measured in the persistent pigment darkening test (i.e. addressing mainly UVA radiation) is at least 1/3 of the factor measured by the sun protection factor testing method (i.e. addressing mainly UVB radiation).