yellowing

yel·low

Y0013500 (yĕl′ō)n.1. a. The hue of that portion of the visible spectrum lying between orange and green, evoked in the human observer by radiant energy with wavelengths of approximately 570 to 590 nanometers; any of a group of colors of a hue resembling that of ripe lemons and varying in lightness and saturation; one of the subtractive primaries; one of the psychological primary hues.b. A pigment or dye having this hue.c. Something that has this hue.2. Chiefly Southern US The yolk of an egg.3. Western US Gold. Used formerly by prospectors.4. yellows Any of various plant diseases characterized by yellow or yellowish discoloration of the leaves and caused by phytoplasmas that are transmitted by insects or by certain viruses.adj. yel·low·er, yel·low·est 1. Of the color yellow.2. a. Having a yellow-brown skin color.b. Offensive Of or being a person of Asian origin.3. Slang Cowardly.tr. & intr.v. yel·lowed, yel·low·ing, yel·lows To make or become yellow: documents that had been yellowed by age; clouds that yellow in the evening light.

[Middle English yelow, from Old English geolu; see ghel- in Indo-European roots.]

yel′low·ness n.

单词	yellowing
释义	yellowing yel·low Y0013500 (yĕl′ō)n.1. a. The hue of that portion of the visible spectrum lying between orange and green, evoked in the human observer by radiant energy with wavelengths of approximately 570 to 590 nanometers; any of a group of colors of a hue resembling that of ripe lemons and varying in lightness and saturation; one of the subtractive primaries; one of the psychological primary hues.b. A pigment or dye having this hue.c. Something that has this hue.2. Chiefly Southern US The yolk of an egg.3. Western US Gold. Used formerly by prospectors.4. yellows Any of various plant diseases characterized by yellow or yellowish discoloration of the leaves and caused by phytoplasmas that are transmitted by insects or by certain viruses.adj. yel·low·er, yel·low·est 1. Of the color yellow.2. a. Having a yellow-brown skin color.b. Offensive Of or being a person of Asian origin.3. Slang Cowardly.tr. & intr.v. yel·lowed, yel·low·ing, yel·lows To make or become yellow: documents that had been yellowed by age; clouds that yellow in the evening light. [Middle English yelow, from Old English geolu; see ghel- in Indo-European roots.] yel′low·ness n. IdiomsSeeyellow yellowing yellowing The development of a yellow color or cast in white or clear coatings after aging.
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