英语词汇“diffusion”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

dif•fu•sion n.

act of diffusing;
state of being diffused.
prolixity of speech or writing;
discursiveness.
Physics
- PhysicsAlso called migration. an intermingling of molecules, ions, etc., resulting from random thermal agitation, as in the dispersion of a vapor in air.
- a reflection or refraction of light or other electromagnetic radiation from an irregular surface or an erratic dispersion through a surface;
  scattering.
Cinema[Motion Pictures.]a soft-focus effect resulting from placing a gelatin or silk plate in front of a studio light or a camera lens, or through the use of diffusion filters.
Meteorologythe spreading of atmospheric constituents or properties by turbulent motion as well as molecular motion of the air.
Anthropology, Sociologythe transmission of elements or features of one culture to another.

Latin diffūsiōn- (stem of diffūsiō) a spreading out, equivalent. to diffūs(us) (see diffuse) + -iōn- -ion
Middle English 1325–75

Collins Concise English Dictionary © HarperCollins Publishers::

diffusion /dɪˈfjuːʒən/ n

the act or process of diffusing or being diffused; dispersion
verbosity
the random thermal motion of atoms, molecules, clusters of atoms, etc, in gases, liquids, and some solids
the transfer of atoms or molecules by their random motion from one part of a medium to another
the transmission or reflection of electromagnetic radiation, esp light, in which the radiation is scattered in many directions and not directly reflected or refracted; scattering
the transmission of social institutions, skills, and myths from one culture to another

dif•fuse v., -fused, -fusing, adj.
v.

to (cause to) spread or scatter widely: [no object]The light diffused into the room.[~ + object]Diffuse the light in your room to avoid glare.
Physics to spread out freely without restriction;
disseminate:[~ + object]The printing press helped diffuse knowledge.

adj.

widely spread or scattered;
dispersed:The room was bathed in soft, diffuse light.
characterized by wordiness in speech or writing;
disjointed:I got lost in your rather diffuse essay.

dif•fuse•ly   adv.
dif•fuse•ness, n. [uncountable]
dif•fu•sion   n. [uncountable]diffusion of gases into the atmosphere.
dif•fu•sive   adj. See -fus-.

dif•fuse v., -fused, -fusing, adj.
v.t.

to pour out and spread, as a fluid.
to spread or scatter widely or thinly;
disseminate.
Physicsto spread by diffusion.

v.i.

to spread.
Physicsto intermingle by diffusion.

adj.

characterized by great length or discursiveness in speech or writing;
wordy.
widely spread or scattered;
dispersed.
Botanywidely or loosely spreading.
Optics(of reflected light) scattered, as from a rough surface (opposed to specular).

Latin diffūsus spread, poured forth. See dif-, fuse²
Anglo-French)
Middle English (1350–1400

dif•fuse•ly adv. dif•fuse′ness, n.

单词	diffusion
释义	WordReference Random House Unabridged Dictionary of American English © 2024 dif•fu•sion (di fyo̅o̅′zhən),USA pronunciation n. act of diffusing; state of being diffused. prolixity of speech or writing; discursiveness. Physics PhysicsAlso called migration. an intermingling of molecules, ions, etc., resulting from random thermal agitation, as in the dispersion of a vapor in air. a reflection or refraction of light or other electromagnetic radiation from an irregular surface or an erratic dispersion through a surface; scattering. Cinema[Motion Pictures.]a soft-focus effect resulting from placing a gelatin or silk plate in front of a studio light or a camera lens, or through the use of diffusion filters. Meteorologythe spreading of atmospheric constituents or properties by turbulent motion as well as molecular motion of the air. Anthropology, Sociologythe transmission of elements or features of one culture to another. Latin diffūsiōn- (stem of diffūsiō) a spreading out, equivalent. to diffūs(us) (see diffuse) + -iōn- -ion Middle English 1325–75 Collins Concise English Dictionary © HarperCollins Publishers:: diffusion /dɪˈfjuːʒən/ n the act or process of diffusing or being diffused; dispersion verbosity the random thermal motion of atoms, molecules, clusters of atoms, etc, in gases, liquids, and some solids the transfer of atoms or molecules by their random motion from one part of a medium to another the transmission or reflection of electromagnetic radiation, esp light, in which the radiation is scattered in many directions and not directly reflected or refracted; scattering the transmission of social institutions, skills, and myths from one culture to another WordReference Random House Learner's Dictionary of American English © 2024 dif•fuse /v. dɪˈfyuz; adj.* -ˈfyus/USA pronunciation* v., -fused, -fusing, adj. v. to (cause to) spread or scatter widely: [no object]The light diffused into the room.[~ + object]Diffuse the light in your room to avoid glare. Physics to spread out freely without restriction; disseminate:[~ + object]The printing press helped diffuse knowledge. adj. widely spread or scattered; dispersed:The room was bathed in soft, diffuse light. characterized by wordiness in speech or writing; disjointed:I got lost in your rather diffuse essay. dif•fuse•ly /dɪˈfyusli/USA pronunciation adv. dif•fuse•ness, n. [uncountable] dif•fu•sion /dɪˈfyuʒən/USA pronunciation n. [uncountable]diffusion of gases into the atmosphere. dif•fu•sive /dɪˈfyusɪv/USA pronunciation adj. See -fus-. WordReference Random House Unabridged Dictionary of American English © 2024 dif•fuse (v. di fyo̅o̅z′;adj. di fyo̅o̅s′),USA pronunciation v., -fused, -fusing, adj. v.t. to pour out and spread, as a fluid. to spread or scatter widely or thinly; disseminate. Physicsto spread by diffusion. v.i. to spread. Physicsto intermingle by diffusion. adj. characterized by great length or discursiveness in speech or writing; wordy. widely spread or scattered; dispersed. Botanywidely or loosely spreading. Optics(of reflected light) scattered, as from a rough surface (opposed to specular). Latin diffūsus spread, poured forth. See dif-, fuse² Anglo-French) Middle English (1350–1400 dif•fuse•ly (di fyo̅o̅s′lē),USA pronunciation adv. dif•fuse′ness, n.
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