[ verb ] make lighter or brighter
"This lamp lightens the room a bit"
Used in print(Francis J. Johnston and John E. Willard, "The...)
Liter quantities of Mallinckrodt , low sulfur , reagent grade carbon_tetrachloride were saturated with * * f and * * f and illuminated for about 50 hours with a 1000 watt tungsten lamp at a distance of a_few inches .
This chlorine carbon_tetrachloride solution was illuminated for a day following which the flask was resealed onto a vacuum system and the excess chlorine distilled off .
Some 80 reaction tubes from 13 manifold fillings were illuminated in the temperature range from 40 to 85 ` in a further endeavor to determine the cause of the irreproducibility and to obtain information on the activation_energy and the effect of light intensity .
It was possible to make estimates of the quantum yield by observing the extent of reduction of a uranyl_oxalate actinometer solution illuminated for a known time in a typical reaction cell and making appropriate conversions based on the differences in the absorption_spectra of uranyl_oxalate and of chlorine , and considering the spectral distribution of the light source .
When typical reaction cells to which 0.3 of an atmosphere of oxygen had been added were illuminated , chlorine and phosgene were produced .
[ verb ] make free from confusion or ambiguity; make clear
: "Could you clarify these remarks?" "Clear up the question of who is at fault"
Used in print(Howard Nemerov, "Themes and Methods: The Early...)
the crude sketch of Piepsam contains , in its critical , destructive and self-destructive tendencies , much that is enlarged and illuminated in the figures of , for_instance , Naphta and Leverku^hn .(Clayton C. Barbeau, The Ikon....)
Now he knew that the moment illuminated by the vision on the train would have_to be approached .