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2 VERB When something such as a tyre or balloon deflates , or when you deflate it, all the air comes out of it. □ [V ] When it returns to shore, the life-jacket will deflate and revert to a harness. □ [V n] We deflate the tyres to make it easier to cross the desert.

de|fla|tion /diː fle I ʃ ^ə n, d I f-/ N‑UNCOUNT Deflation is a reduction in economic activity that leads to lower levels of industrial output, employment, investment, trade, profits, and prices. [BUSINESS ]

de|fla|tion|ary /diː fle I ʃənri, [AM ] -neri/ ADJ [usu ADJ n] A deflationary economic policy or measure is one that is intended to or likely to cause deflation. [BUSINESS ]

de|flect /d I fle kt/ (deflects , deflecting , deflected )

1 VERB If you deflect something such as criticism or attention, you act in a way that prevents it from being directed towards you or affecting you. □ [V n] Cage changed his name to deflect accusations of nepotism. □ [V n + from ] It's a maneuver to deflect the attention of the people from what is really happening.

2 VERB To deflect someone from a course of action means to make them decide not to continue with it by putting pressure on them or by offering them something desirable. □ [V n + from ] The war did not deflect him from the path he had long ago taken. □ [V n] Never let a little problem deflect you.

3 VERB If you deflect something that is moving, you make it go in a slightly different direction, for example by hitting or blocking it. □ [V n] My forearm deflected most of the first punch.

de|flec|tion /d I fle kʃ ^ə n/ (deflections )

1 N‑VAR The deflection of something means making it change direction. [TECHNICAL ] □  …the deflection of light as it passes through the slits in the grating.

2 N‑COUNT In sport, the deflection of a ball, kick, or shot is when the ball hits an object and then travels in a different direction.

de|flow|er /diː flaʊ ə ^r / (deflowers , deflowering , deflowered ) VERB When a woman is deflowered , she has sexual intercourse with a man for the first time. [LITERARY ] □ [be V -ed] Nora was deflowered by a man who worked in a soda-water factory. [Also V n]

de|fo|li|ant /diː foʊ liənt/ (defoliants ) N‑VAR A defoliant is a chemical used on trees and plants to make all their leaves fall off. Defoliants are especially used in war to remove protection from an enemy.

de|fo|li|ate /diː foʊ lie I t/ (defoliates , defoliating , defoliated ) VERB To defoliate an area or the plants in it means to cause the leaves on the plants to fall off or be destroyed. This is done especially in war to remove protection from an enemy. □ [V n] Large areas of jungle were defoliated by a chemical. ●  de|fo|lia|tion /diː foʊ lie I ʃ ^ə n/ N‑UNCOUNT □  …preventing defoliation of trees by caterpillars.

de|for|est /diː fɒ r I st, [AM ] -fɔː r-/ (deforests , deforesting , deforested ) VERB [usu passive] If an area is deforested , all the trees there are cut down or destroyed. □ [be V -ed] The area had largely been deforested by the middle of the 19th century. ●  de|for|esta|tion /diː fɒ r I ste I ʃ ^ə n, [AM ] -fɔː r-/ N‑UNCOUNT □  …the ecological crisis of deforestation.