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penetration
1 ENTRIES FOUND:
plural penetrations
plural penetrations
Learner's definition of PENETRATION
1
: the act of going through or into something : the act of penetrating something刺穿；穿透；渗透
[noncount]
- Cuts in the skin could permit the penetration of bacteria into the body.皮肤的伤口会导致细菌侵入体内。
- the penetration of the CIA by foreign agents外国特工对美国中央情报局的渗透
- the penetration of the U.S. market by a foreign company一家外国公司对美国市场的打入
[count]
- multiple penetrations into enemy territory多处攻入敌占区
2
[noncount] formal : an ability to understand things clearly and fully洞察力；敏锐
- a writer who analyzes the underlying causes of the recession with great penetration深刻剖析经济危机根源的作家
penetration
noun
pen·e·tra·tion ˌpe-nə-ˈtrā-shən 
1
a
: the power to penetrate
especially : the ability to discern deeply and acutely
b
: the depth to which something penetrates
c
: the extent to which a commercial product or agency is familiar or sells in a market
2
: the act or process of penetrating: such as
a
: the act of entering a country so that actual establishment of influence is accomplished
b
: an attack that penetrates the enemy's front or territory
Example Sentences
Cuts in the skin could permit the penetration of bacteria into the body. the penetration of the CIA by foreign agents the penetration of the U.S. market by a foreign company multiple penetrations into enemy territory a writer who analyzes the underlying causes of the recession with great penetration
Recent Examples on the Web Most gardens will require one to two inches of water penetration to maintain optimal health. 
James Fitzgerald, Popular Mechanics, 2 Aug. 2022 While many at-home versions exist, Dr. Doft recommends having your physician control the level of penetration—think half a millimeter to 2.5 millimeters. Janell M. Hickman, SELF, 27 July 2022 Previously one of the more prohibitive factors for widespread penetration of hearing augmentation devices, the financial cost associated with purchasing them is becoming lower with each passing year. Brian Crannell, Forbes, 2 May 2022 The report expects broadband connections in U.S. households will surpass 90% penetration reaching 122 million by year end, slowing growth rate. Brad Adgate, Forbes, 9 Aug. 2022 That’s triple the current online penetration rate of eight percent of internal commerce. Alex Salkever, Fortune, 2 Aug. 2022 By adjusting the energy of the protons coming out of an accelerator, a doctor can choose the penetration depth that will deliver them directly to a target. James Riordon, Scientific American, 29 July 2022 But the penetration rate in the Japanese market is still about half that of Europe and the United States. Billboard Japan, Billboard, 19 July 2022 With subscription penetration plateauing in North America and Europe, Japan represents an important growth territory for all global streaming platforms. Patrick Brzeski, The Hollywood Reporter, 18 July 2022 See More
James Fitzgerald, Popular Mechanics, 2 Aug. 2022 While many at-home versions exist, Dr. Doft recommends having your physician control the level of penetration—think half a millimeter to 2.5 millimeters. Janell M. Hickman, SELF, 27 July 2022 Previously one of the more prohibitive factors for widespread penetration of hearing augmentation devices, the financial cost associated with purchasing them is becoming lower with each passing year. Brian Crannell, Forbes, 2 May 2022 The report expects broadband connections in U.S. households will surpass 90% penetration reaching 122 million by year end, slowing growth rate. Brad Adgate, Forbes, 9 Aug. 2022 That’s triple the current online penetration rate of eight percent of internal commerce. Alex Salkever, Fortune, 2 Aug. 2022 By adjusting the energy of the protons coming out of an accelerator, a doctor can choose the penetration depth that will deliver them directly to a target. James Riordon, Scientific American, 29 July 2022 But the penetration rate in the Japanese market is still about half that of Europe and the United States. Billboard Japan, Billboard, 19 July 2022 With subscription penetration plateauing in North America and Europe, Japan represents an important growth territory for all global streaming platforms. Patrick Brzeski, The Hollywood Reporter, 18 July 2022 See More Word History
First Known Use
1605, in the meaning defined at sense 1a
Time Traveler
The first known use of penetration was in 1605 noun¹
noun²
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