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Blackheath, battle of

Blackheath, battle of, 1497. A formidable rising of Cornishmen in the summer of 1497 protested against taxation to support Henry VII's campaign against James IV of Scotland, arguing that this was a purely northern responsibility. Under the leadership of Thomas Flammock and James, Lord Audley, the rebels marched through Wells, Salisbury, and Winchester towards London, where they caused great panic. But Lord Daubeney and the earl of Oxford led the army prepared for Scotland against the insurgents at Blackheath and dispersed them. Flammock and Audley were executed.

J. A. Cannon

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blackhead

blackhead, yellowish or blackish plug of material accumulated in the duct of a sebaceous gland. The material consists of keratin (horny cells of the epidermis) and modified sebum (oily secretions of the sebaceous gland). Blackheads are the primary lesions in acne. Treatment is the same as for acne, with frequent cleansing of the skin followed by the application of astringent solutions. Plugs should be extracted only by a physician, since damage to the surrounding tissues occasioned by squeezing often leads to scarring.

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Blackheath

Blackheath, common, 267 acres (108 hectares) in Lewisham and Greenwich boroughs, London, England. It was the gathering place of highwaymen and of several martial groups, including the followers of Wat Tyler in 1381 and of Jack Cade in 1450, who made Blackheath the headquarters for their attacks on London.

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blackhead

blackhead A disease of turkeys caused by the protozoon Histomonas meleagridis. The disease affects the caecum and liver of the bird, and the mortality rate may be high. The disease is transmitted by a nematode worm parasitic in the intestines of turkeys.

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blackhead

black·head / ˈblakˌhed/ • n. a plug of sebum in a hair follicle, darkened by oxidation.

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blackhead

blackheadabed, ahead, bed, behead, Birkenhead, bled, bread, bred, coed, cred, crossbred, dead, dread, Ed, embed, Enzed, fed, fled, Fred, gainsaid, head, infrared, ked, lead, led, Med, misled, misread, Ned, outspread, premed, pure-bred, read, red, redd, said, samoyed, shed, shred, sked, sled, sped, Spithead, spread, stead, ted, thread, tread, underbred, underfed, wed •trackbed • flatbed • deathbed •airbed • daybed • seabed •reed bed, seedbed •sickbed • childbed • hotbed • roadbed •footbed • sunbed • sofa bed •waterbed • feather bed • breastfed •dripfed • spoonfed • Szeged •blackhead •cathead, fathead, Flathead •masthead •bedhead, deadhead, redhead •egghead •airhead, stairhead •railhead • maidenhead • Gateshead •beachhead • greenhead • meathead •bighead • bridgehead •dickhead, thickhead •pinhead, skinhead •pithead • Holyhead • sleepyhead •fountainhead • whitehead • godhead •blockhead •drophead, hophead, mophead •hothead • hogshead •sorehead, warhead •Roundhead • bonehead • arrowhead •bullhead • wooden-head • sub-head •bulkhead •chucklehead, knucklehead •drumhead • muttonhead • spearhead •go-ahead • dunderhead • figurehead •loggerhead • hammerhead •letterhead • bobsled • cirriped • biped •moped • quadruped

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