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diffraction
diffraction grating
diffraction ring
diffractometer
diffuse (1)
diffuse (2)
diffuser
diffusion
diffusion pump
diffusionism
diffusive
dig
dig in
dig out
dig up
Digambara
digamma
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diffusion pump
dif·fu·sion pump (plural dif·fu·sion pumps)


noun 
Definition:
 
high vacuum pump: a pump for producing high vacuums in which one or more plates acting as baffles deflects vaporized oil and removes gas particles with the stream
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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