yellow card noun

1. An official warning to a football, etc player (signalled by the showing of a yellow card), typically following an infringement
2. Any similar warning, or a symbol of it (figurative)

yellow centaury same as yellow-wort below.

yellow dog noun

1. A mongrel
2. A cur
3. A contemptible or cowardly person (also used adjectivally, esp US, as in yellow-dog contract, orig one requiring an employee not to be a member of a trade union, now, in a more general sense, one which gives acceptable advantages to an employee)

yellow earth noun

Yellow ochre

yellow-eyed grass noun

Any plant of the genus Xyris, growing abundantly in the pine-barrens of the southern USA

yellow fever noun

An acute disease occurring in tropical America and W Africa, caused by infection with a virus transmitted to humans by the bite of a mosquito and characterized by high fever, acute nephritis, jaundice and haemorrhages

yellˈowfin noun

A variety of tuna with yellow fins

yellow flag noun

A flag of a yellow colour, displayed by a vessel in quarantine or over a military hospital or ambulance

yellow-girl see yellow-boy above.

yellˈowhammer or (obsolete) yellˈow-ammer noun

A bunting (Emberiza citrinella), so named from the yellow colour of the male (also called yellow bunting)

yellˈowhead noun

A species of flycatcher (Mohoua ochrocephala) found in New Zealand

yellow jack noun (old)

Yellow fever

yellow jacket noun (N American)

A small common wasp or hornet (genus Vespa) with yellow and black markings

yellow jersey noun

(Fr maillot jaune) the jersey worn each day in the Tour de France cycle race by the overall leader in the race

yellˈowlegs noun

A N American sandpiper with yellow legs

yellow line noun

A line of yellow paint, or other substance, on a road indicating parking restrictions

yellow metal noun

A brass consisting of sixty parts copper and forty parts zinc

Yellow Pages® noun

A telephone directory, printed on yellow paper, which classifies participating subscribers alphabetically according to trades, professions, services, etc

yellow pepper see under pepper

yellow peril noun (also with caps; derogatory or facetious)

1. The supposed danger that the Oriental races, esp the Chinese, might overthrow the white or Western races and overrun the world
2. The Chinese or Japanese

yellow poplar noun

The American tulip tree, or its wood

yellow press noun

(also with cap) newspapers abounding in exaggerated, sensational articles

yellow rattle see under rattle

yellow ribbon noun (US)

A symbol of welcome for those returning home after having undergone some danger, orig a decoration on US cavalrymen's tunics, given to sweethearts as favours

yellˈow-root noun

Golden-seal

yellow rust noun

A fungus damaging to wheat

yellow snow noun

Snow sometimes observed in the Alps and in the Antarctic regions, coloured yellow by the growth on it of certain algae

yellow soap noun

Common soap composed of tallow, resin and soda

yellow spot noun

The macula lutea, the small area at the centre of the retina in vertebrates at which vision is most distinct

yellow streak noun

A tendency to cowardly behaviour

yellˈowtail noun

1. Any of various sea fishes with yellow tail fins
2. A white tussock moth with a yellow-tipped abdomen

yellow wash noun

A lotion consisting of a mixture of mercuric chloride and lime water

yellˈow-weed noun

1. The common ragwort
2. Goldenrod
3. Weld (the plant) (dialect)

yellˈow-wood noun

1. Any of various woods that are light in colour, such as satinwood, or which yield yellow dye, such as Cladrastis lutea (American yellow-wood) of the southern USA
2. Any of the trees that yield these woods
3. A tree, such as a sumach, that yields yellow dye from a part other than the wood

yellˈow-wort noun

An annual of the gentian family (also yellow centaury)

yellˈow-yite, yellow yoldring, yellow yorling or yellow-yowˈley same as yellowhammer above.