perforation
[pɜ:fə'reɪʃ(ə)n]
&&&&网页划词
词性及解释
n. 穿孔, 孔眼, 贯穿, 贯通
【化】 穿透
【医】 穿孔, 穿破; 穿孔术
n.the act of punching a hole (especially a row of holes as for ease of separation)
n.a line of small holes for tearing at a particular place
n.a hole made in something
○ a perforation of the eardrum
1. An ornament inserted into a perforation in the LIP.唇饰穿在唇上的孔里的一种饰物
2. About 15 to 20 percent of patients who require treatment for perforation or bleeding will NOT have an antecedent history of ulcer pain为出血或穿孔而需治疗的病人中，约15―20%以往无溃疡疼痛的病史。
3. Any tape Punch that automatically converts coded electrical signals into perforation in tape自动地将编码电信号变换为纸带上的穿孔的任何纸带穿孔机。
4. The acute perforation has developed发生急性穿孔。
小测验：选择正确的单词
n. 凉亭, 藤架, 绿廊
A.pderiapt
B.pderigee
C.pdergola
D.pderfunctory
论坛词汇板块最新发帖
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其他托福英语单词
a. 燧石的, 含燧石的, 坚硬的, 冷...
a. 沉没的, 下凹的
sink的过去分...
a. 暂时的, 临时的, 间歇的
n. 节欲, 戒酒, 禁酒, 节制
其他GRE英语单词Perforation | Definition of Perforation by Merriam-Webster
per&#183;fo&#183;ra&#183;tion
\?p?r-f?-'rā-sh?n\
: a small hole or series of small holes in paper, cardboard, etc.
medical : a hole in part of the body caused by an accident or disease
Source: Merriam-Webster's Learner's Dictionary
Full Definition of perforation
the act or process of 2 a
a hole or pattern made by or as if by piercing or boring b
one of the series of holes (as between rows of postage stamps) in a sheet that serve as an aid in separation
defined for English-language learners
defined for kids
Examples of perforation in a sentence
an infection that can cause perforation of the intestine&absentmindedly made perforations in his paper with his pencil&
15th Century
First Known Use of perforation
15th century
Related to perforation
Synonyms , , , , , Related Words , , ; , , , , , , , , , , , Near Antonyms , , , , , , ; , , ,
Rhymes with perforation
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constipation, consultation, consummation, contemplation, conurbation, conversation, convocation, copulation, coronation, corporation, correlation, corrugation, crenellation, crop rotation, culmination, cultivation, cumulation, cybernation, decimation, declamation, declaration, declination, decoration, dedication, defamation, defecation, deformation, degradation, dehydration, delectation, delegation, demarcation, demonstration, denigration, denotation, depilation, deportation, depravation, depredation, deputation, derivation, derogation, desecration, designation, desolation, desperation, destination, detestation, detonation, devastation, deviation, dislocation, dispensation, disputation, dissertation, dissipation, distillation, divination, domination, education, elevation, elongation, emanation, embarkation, embrocation, emendation, emigration, emulation, enervation, escalation, estimation, evocation, exaltation, excavation, excitation, exclamation, exculpation, execration, exhalation, exhortation, exhumation, expectation, expiation, expiration, explanation, explication, exploitation, exploration, exportation, expurgation, extirpation, exultation, fabrication, fascination, federation, fenestration, fermentation, fibrillation, figuration, filling station, fire station, flagellation, fluoridation, fluctuation, forestation, formulation, fornication, fragmentation, fulmination, fumigation, gene mutation, generation, germination, glaciation, graduation, granulation, gravitation, habitation, hesitation, hibernation, hyphenation, ideation, imitation, immigration, immolation, implantation, implication, importation, imprecation, imputation, incantation, incarnation, inclination, incrustation, incubation, indentation, indication, indignation, infestation, infiltration, inflammation, information, inhalation, innovation, inspiration, installation, instigation, insulation, integration, intimation, intonation, inundation, invitation, invocation, irrigation, irritation, iteration, jubilation, laceration, lamentation, lamination, legislation, levitation, liberation, limitation, lineation, liquidation, litigation, lubrication, lucubration, maceration, machination, malformation, masturbation, maturation, mediation, medication, meditation, melioration, menstruation, ministration, mitigation, moderation, modulation, molestation, motivation, mutilation, navigation, nomination, obfuscation, objurgation, obligation, observation, occupation, operation, orchestration, ordination, oscillation, osculation, ostentation, ovulation, oxidation, pagination, palpitation, penetration, percolation, permeation, permutation, perpetration, perspiration, perturbation, pigmentation, pixilation, police station, pollination, population, postulation, power station, predication, preparation, presentation, preservation, proclamation, procreation, profanation, prolongation, promulgation, propagation, prorogation, protestation, provocation, publication, punctuation, radiation, recantation, recitation, reclamation, re-creation, recreation, reformation, refutation, registration, regulation, rehydration, relaxation, relocation, renovation, reparation, replication, reprobation, reputation, reservation, resignation, respiration, restoration, retardation, revelation, revocation, ruination, rumination, rustication, salutation, sanitation, saturation, segmentation, segregation, separation, sequestration, service station, sexploitation, simulation, situation, speciation, speculation, spoliation, stimulation, stipulation, strangulation, structuration, stylization, subjugation, sublimation, suffocation, syncopation, syndication, tabulation, termination, T formation, titillation, toleration, transfer station, transformation, translocation, transmigration, transmutation, transpiration, transplantation, transportation, trepidation, tribulation, ulceration, ululation, undulation, urination, vaccination, vacillation, validation, valuation, variation, vegetation, veneration, ventilation, vindication, violation, visitation, weather station
Medical Dictionary
per&#183;fo&#183;ra&#183;tion
\?p?r-f?-'rā-sh?n\
th specifically :
the penetration of a body part through accident or disease &spontaneous perforation of the sigmoid colon in the presence of diverticulosis—Journal of the American Medical Association&2a:
a rupture in a body part caused especially by accident or diseaseb:
a natural opening in an organ or body part
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to attack with evil reports
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