de racin ate /,di:'raesineit/ verb [VN] (formal) to force sb to leave the place or situation in which they feel comfortable IMJfM

tifa ► de racin ated /.dii'raesineitid/ adj. de rail /di'reil/ verb (of a train A A) to leave the track; to make a train do this (      fv] The train

derailed and plunged into the river. A # $fl $4     7

MIo 0 [VN] (figurative) This latest incident could derail the peace process. ft ► de rail ment noun [C, U]

de-rail-leur /di'reilj0(r)/ noun (technical Ain) a type of gear on a bicycle that works by lifting the chain from one gear wheel to another larger or smaller one f§, $£» (        )

de ranged /di'remd3d/ adj. unable to behave and think normally, especially because of mental illness W;      mentally deranged jf# It SL

0 a deranged attacker       # ► de-range-ment

noun [U] : He seemed to be on the verge of total derangement.

derby /‘daibi; NAmE 'd3:rbi/ noun (pi. -ies) 1 (NAmE) = bowler(2) 2 (BrE) a sports competition between teams from the same area or town ( [WJftfelX#IAl0] ) WW tfcH: a local derby between the two North London sides MAJfcffeffcfAAlH]       0 a derby match

i&E'ftWthff 3 a race or sports competition $£ it U; $■ W ^ H: a motorcycle derby 0 A A H — see also demolition derby 4 Derby used in the name of several horse races which happen every year % it Bj H ( #jt/M—) : the Epsom Derby 0 the Kentucky Derby #igS-S/iS de-reference /.dii'refrans/ verb [VN] (computing if) to use a piece of data to discover where another piece of data is held |a]&3U£; iHj&ifrffi de regu late /,di:'regjuleit/ verb [VN] [often passive] to free a trade, a business activity, etc. from rules and controls

ECG3 decontrol : deregulated financial markets M j§l 7      ► de-regu-la-tion /.dii.regju'leijn/

noun [U] deregu-la-tory /.dir'regjalatari; NAmE -toiri/ adj. [only before noun]: deregulatory reforms

dere-lict /'deralikt/ adj., noun

                   adj. (especially of land or buildings    5t#i#l)

not used or cared for and in bad condition jit j; M # g fill; ®[ 10 W: derelict land/buildings/sites

±*&;

                   noun (formal) a person without a home, a job or prop­erty ftMMB#;   derelicts living on

the streets EEd vagrant

dere-lic-tion /.dera'likjn/ noun (formal) 1 [U] the state of being derelict MM; # 2; IB 7        : industrial/

urban dereliction lik / $cT|Jo a house in a state of dereliction $UB 2 [U, sing.] ~ of duty (formal

or law the fact of deliberately not doing what you ought to do, especially when it is part of your job 0 7 ; ^ |pN. jhe police officers were found guilty of serious dereliction of duty.  13E it

mm.

de-ride /di'raid/ verb [VN] [often passive] ~ sb/sth (as sth) (formal) to treat sb/sth as ridiculous and not worth considering seriously %; It#; ftp H HT?1 mock • His views were derided as old-fashioned. (fa^M IBMiSlW#. [also v speech] de ri-gueur /,da ri'g3:(r)/ adj. [not before noun] (from French) considered necessary if you wish to be accepted socially        SURWIft: Evening dress

is de rigueur at the casino.

de ri sion /di'ri3n/ noun [U] a strong feeling that sb/sth is ridiculous and not worth considering seriously, shown by laughing in an unkind way or by making unkind remarks if]%;        H$! HT71 scorn Her

speech was greeted with howls of derision.        W M i# S f i|

o He became an object of universal derision.

titJ&TikAm&MMMLo

de-ri-sive /di'raisrv/ (also less frequent de-ri-sory) adj. unkind and showing that you think sb/sth is ridiculous i$]  She gave a short, derisive

laugh.       de ri sive ly adv.

de-ri-sory /di'raisari/ adj. (formal) 1 too small or of too little value to be considered seriously ; At#

|!tfj; PW1 laughable : They offered us

a derisory £10 a week, ftkCljH in Cl 10    At#"6!

0   2 = DERISIVE

der-iv-ation /.deri'veijn/ noun [U, C] the origin or devel­opment of sth, especially a word ( A#! is] iff (ft )

& A > M : a. word of Greek derivation & # St iff M £ Iftis]

de-riva-tive /di'rrvatrv/ noun, adj.

                   noun a word or thing that has been developed or

produced from another word or thing M £ ii]; ffr £ ^ ; I4tl; ffr £ : ‘Happiness’ is a derivative of

happy’. * happiness happy lit) ffl: £ is] 0 o Crack is a

highly potent and addictive derivative of cocaine. ■]§]$[££

                   adj. (usually disapproving) copied from sth else; not having new or original ideas

Stj: a derivative design/style i&^flA^Jiiif / de rive o-w /di'raiv/ verb

IJ:i;4Vi de rive from sth | be de'rived from sth to

come or develop from sth A • • •        ih;    ^; AS:

The word ‘politics’ is derived from a Greek word meaning ‘city’. * politics — isJK g #jfiriff, M M city 0 de' rive sth from sth 1 (formal) to get sth from sth ( jA ••• + ) %3\,    He derived great pleasure from painting, fife

2 (technical A ip) to obtain a substance from sth ( Ik ■■■ A ) $|M: The new drug is derived from fish oil.

dermatitis /,d3:ma'taitis; NAmE ,d3:rm-/ noun [U] (medical IS) a skin condition in which the skin becomes red, swollen and sore

derma tolo gist /,d3:ma'tDlad3ist; NAmE ,d3:rma‘ta:l-/ noun a doctor who studies and treats skin diseases

derma tol ogy /,d3:m0'tDlad3i; NAmE ,d3:rm0'ta:l-/ noun [U] the scientific study of skin diseases JK: ^ ^ ► derma-to-logi-cal /,d3:m0ta'lDd3ikl; NAmE ,d3:rmata- 'la:d3-/ adj.

der-mis /'d3:mis; NAmE 'd3:r-/ noun [U] (biology £) the skin

the der-nier cri /.deonjei ‘kri:; NAmE .dernjei/ noun [sing.] (from French) the latest fashion ft fr    ft Ilf

dero-gate /'deragert/ verb [VN] (formal) to state that sth or sb is without worth   M      'derogate

from sth to ignore a responsibility or duty dero ga tion Adera'geijn/ noun [U, C] (formal) 1 an occa­sion when a rule or law is allowed to be ignored ( Xt 2 words or actions which show that sb or sth is considered to have no worth OsStfrA)

de-roga-tory /di'rogatri; NAmE di'raigatoiri/ adj. showing a critical attitude towards sb PYn insulting: derogatory remarks/comments fgfp

der rick /'derik/ noun 1 a tall machine used for moving or lifting heavy weights, especially on a ship; a type

Of CRANE HfgM; (

2 a tall structure over an oil well for holding the drill (= the machine that makes the hole in the ground for getting the oil out) ( derring-do /.derir) 'du:/ noun [U] (old-fashioned, humorous) brave actions, like those in adventure stories ASHf^fA; tA

dervish /■ d3:vij; NAmE 'dairvif/ noun a member of a Muslim religious group whose members make a promise to stay poor and live without comforts or pleasures. They perform a fast lively dance as part of their worship.

) : He threw himself around the stage like a whirling dervish, (fa£ £ ±It ffl,