0 past simple and past participle of bleach --
1 to remove the colour from something or make it lighter, with the use of chemicals or by the effect of light from the sun; to become lighter in this way : --
Losses from oxide-coated sand ultimately exceeded those from bleached sand for three of the four cations.
Anything over this concentration abolished photosynthetic activity in the samples, which eventually bleached and died.
This is associated with some conodont elements having pink to reddish colours of variable intensity, some showing a grey patina, others are bleached.
Rare pebbles of rotted and bleached lamprophyre are locally present; these appear to have been minette originally but are highly altered.
Wavelengths for each unique hue were determined under both dark adapted and bleached conditions within each day of data collection.
Outer segments were bleached with broadband white light from the monochromator at its blaze angle to confirm that the putative visual pigments were photolabile.
Photopigment in the outer segment was bleached by passing white light through the measuring beam, and repeat scans were completed to calculate the difference spectrum.
Exposure to bleached kraft pulp-mill effluent disrupts the pituitary-gonadal axis of white sucker at multiple sites.
