| 释义 |
impaction
im·pact I0052500 (ĭm′păkt′)n.1. a. The striking of one body against another; collision. See Synonyms at collision.b. The force transmitted by a collision.2. The effect or impression of one person or thing on another: still gauging the impact of automation on the lives of factory workers.v. (ĭm-păkt′, ĭm′păkt′) im·pact·ed, im·pact·ing, im·pacts v.tr.1. To pack firmly together.2. To strike forcefully: meteorites impacting the lunar surface.3. To have an effect or impact on: "No region ... has been more impacted by emerging ... economic trends" (Joel Kotkin).v.intr. To have an effect or impact. See Usage Note below.
[From Latin impāctus, past participle of impingere, to push against; see impinge.]
im·pac′tion n.Usage Note: Impact in the figurative sense of "a dramatic effect" came under criticism in the 1960s, both as a noun and verb. Complaints that the noun was a pointless hyperbole and a vogue word turned out to be short-lived, and this usage is now is standard: in our 2015 survey, 97 percent of the Usage Panel accepted The program might have a positive impact on our nation's youth. (A similar sentence was accepted by 93 percent of the Panel in 2001.) The verb is a different matter. Many people dislike it because they assume it was converted from the noun in the manner of voguish and bureaucratic words like dialogue and interface, but in fact impact was a verb long before it was a noun—the verb dates from the early 1600s, the noun from the late 1700s. Most of the Panelists still disapprove of the intransitive use of the verb meaning "to have an effect": in our 2015 survey, 78 percent of the Panel (down only slightly from 85 percent in 2001) rejected These policies are impacting on our ability to achieve success. The transitive version was once as vilified, but is gradually becoming more acceptable: in 2015, only 50 percent (down from 80 percent in 2001) rejected The court ruling will impact the education of minority students, and only 39 percent (down from 66 percent in 2001) found the literal sense unacceptable in the sentence Thousands of meteors have impacted the lunar surface. Although resistance to the transitive senses is waning, the intransitive use is still strongly disliked and is best avoided. See Usage Notes at contact, impactful.im•pac•tion (ɪmˈpæk ʃən)
n. 1. an act or instance of impacting. 2. the state of being impacted. [1730–40; < Late Latin] Thesaurus| Noun | 1. | impaction - the condition of being pressed closely together and firmly fixedcondition, status - a state at a particular time; "a condition (or state) of disrepair"; "the current status of the arms negotiations" | | 2. | impaction - a disorder in which feces are impacted in the lower colondisorder, upset - a physical condition in which there is a disturbance of normal functioning; "the doctor prescribed some medicine for the disorder"; "everyone gets stomach upsets from time to time" | | 3. | impaction - a disorder in which a tooth is so crowded in its socket that it cannot erupt normallyimpacted toothdisorder, upset - a physical condition in which there is a disturbance of normal functioning; "the doctor prescribed some medicine for the disorder"; "everyone gets stomach upsets from time to time" | | 4. | impaction - a sharp collision produced by striking or dashing against somethingimpingementcrash, smash - the act of colliding with something; "his crash through the window"; "the fullback's smash into the defensive line" |
TranslationsIdiomsSeeimpactimpaction
impaction[im′pak·shən] (medicine) The state of being lodged and retained in a body part. Confinement of a tooth in the jaw so that its eruption is prevented. A condition in which one fragment of bone is firmly driven into another fragment so that neither can move against the other. impaction
impaction [im-pak´shun] the condition of being wedged in firmly.bony impaction a dental impaction in which the blockage consists of both bone and soft tissue.dental impaction the blocking of a tooth by a physical barrier, such as a neighboring tooth, so that it cannot erupt; see also tooth" >impacted tooth. Impaction of the third molar. From Dorland's, 2000.fecal impaction see fecal impaction.soft tissue impaction a dental impaction in which the blockage consists of soft tissue only.im·pac·tion (im-pak'shŭn), The process or condition of being impacted.im·pac·tion (im-pak'shŭn) The process or condition of being impacted. impaction 1. The condition of being forced into and retained in any part of the body. 2. The situation in which the ends of a fractured bone are firmly driven into each other so that movement at the fracture site does not occur. 3. Retention of an unerupted tooth in the jaw by obstruction by another tooth, especially a molar, so that its normal appearance is prevented. ImpactionA condition in which earwax has become tightly packed in the outer ear to the point that the external ear canal is blocked.Mentioned in: Cerumen Impactionim·pac·tion (im-pak'shŭn) The process or condition of being impacted. Patient discussion about impactionQ. what is the impact of masturbation? because I diden't find my girl?A. the only physical impact i know is an addiction that can occur when doing it way too much. doing it releases chemicals in our brain in the pleasure areas. you can easily get addicted to it. Q. This is mostly for people who have ADHD/ ADD or know someone with it. How is it impacted your life? If you have ADHD/ADD, what type of an impact has it had on the people who are close to you? If you know someone with ADHD/ADD, how have they made an impact on your life?A. ADD can be a little hard to live with especially if it's not being treated. Having ADD makes it hard to stay focused on one thing for a long period of time. I have to make sure that I pack plenty to do when i go to school or else i would never make it through the whole day in a good mood. It isn't all bad though, I'm really good a multi-tasking. I can be working on six different things at once and get them done in a timely manner, whereas if i was just working on one thing it would most likely take me the whole day to finish it. Hope this helps. More discussions about impactionimpaction
Related to impaction: inertial impaction, tooth impactionSynonyms for impactionnoun the condition of being pressed closely together and firmly fixedRelated Wordsnoun a disorder in which feces are impacted in the lower colonRelated Wordsnoun a disorder in which a tooth is so crowded in its socket that it cannot erupt normallySynonymsRelated Wordsnoun a sharp collision produced by striking or dashing against somethingSynonymsRelated Words |