threshold是什么意思,threshold怎么读


threshold基本信息

读法:英 ["θreʃəʊld; "θreʃ,həʊld] 美 ["θrɛʃhold]

释义:

  • n. 入口;门槛;开始;极限;临界值
  • 使用频率:★★

    星级词汇:★★★

    英英释义

    Noun:

  • the starting point for a new state or experience;"on the threshold of manhood"
  • the smallest detectable sensation
  • the entrance (the space in a wall) through which you enter or leave a room or building; the space that a door can close;"he stuck his head in the doorway"
  • the sill of a door; a horizontal piece of wood or stone that forms the bottom of a doorway and offers support when passing through a doorway
  • a region marking a boundary
  • 中英词源

    threshold 门槛,门口,开端,阈值

    来自古英语 threscold,门槛,来自 threscan,踩踏,词源同 thresh.后拼写可能受 hold 影响俗化, 引申诸相关词义。

    threshold
    threshold: [OE] The first element of threshold is identical with English thresh [OE]. This seems to go back ultimately to a prehistoric source that denoted ‘making noise’ (the apparently related Old Church Slavonic tresku meant ‘crash’, and Lithuanian has trešketi ‘crack, rattle’). By the time it reached Germanic, as *thresk-, it was probably being used for ‘stamp the feet noisily’, and it is this secondary notion of ‘stamping’ or ‘treading’ that lies behind threshold – as being something you ‘tread’ on as you go through a door. Thresh by the time it reached English had specialized further still, to mean ‘separate grains from husks by stamping’, and this later evolved to simply ‘separate grains from husks’. Thrash [OE], which originated as a variant of thresh, has taken the further semantic step to ‘beat, hit’.

    It is not known where the second element of threshold came from.

    => thrash, thresh
    threshold (n.)
    Old English þrescold, þærscwold, þerxold, etc., "door-sill, point of entering," of uncertain origin and probably much altered by folk-etymology. The first element probably is related to Old English þrescan (see thresh), either in its current sense of "thresh" or with its original sense of "tread, trample." Second element has been much transformed in all the Germanic languages, suggesting its literal sense was lost even in ancient times. In English it probably has been altered to conform to hold. Liberman (Oxford University Press blog, Feb. 11, 2015) revives an old theory that the second element is the Proto-Germanic instrumental suffix *-thlo and the original sense of threshold was a threshing area adjacent to the living area of a house. Cognates include Old Norse þreskjoldr, Swedish tröskel, Old High German driscufli, German dialectal drischaufel. Figurative use was in Old English.

    词态变化

    复数 thresholds;
    www.weNTIyI.cOm

    权威造句

    1. The consensus has clearly shifted in favour of raising the nuclear threshold.
    显然大家已普遍开始转向支持提高核武器使用的门槛了。

    来自柯林斯例句

    2. We are on the threshold of a new era in astronomy.
    我们很快就将迎来天文学的新纪元。

    来自柯林斯例句

    3. Here she is on the threshold of womanhood.
    现在她将迈入成年期。

    来自柯林斯例句

    4. She stood hesitating on the threshold.
    她站在门口,犹豫不决。

    来自《权威词典》

    5. I"ll never cross the threshold of your house again.
    我再也不进你的家门了.

    来自《简明英汉词典》

    近反义词

  • on the threshold of 始于(在 ... ...
  • threshold circuit 分界电路,阈电路,门...
  • difference threshold 差别阈限
  • threshold concentration 槛限浓度
  • threshold frequency 门限频率,界限频率,...
  • threshold voltage 阈电压,临界电压,门...
  • visual threshold 视阈
  • threshold adjustment 临界调整,限界调整,...
  • absolute threshold 绝对阈值
  • threshold dose 阈剂量
  • threshold illumination 临界照度
  • threshold velocity [地物]阈流速...
  • threshold field 阈场
  • threshold potential 阈值电位,阈电位,临...
  • threshold value 阈值
  • photoelectric threshold 光电阈
  • differential threshold 差阈,辨别阈,差别阈...
  • threshold dosage 阈剂量
  • threshold level 门限信号电平,门限电...
  • threshold sensitivity 阈灵敏度,临界灵敏度...
  • 相似短语

  • on the threshold 在门口
  • on the threshold of 在...的开头, 在...快要开始的时候, 在...的前夕
  • at the threshold of 在…的开始,即将…
  • chromatic threshold 色阈
  • achromatic threshold 无色阈值
  • breakdown threshold 击穿阈值
  • absolute visual threshold 绝对视觉阈,绝对视觉阈
  • ecological threshold 生态阈
  • discriminating threshold 甄别阈
  • discrimination threshold 鉴别灵敏度,鉴别阈
  • 单词分析

    暂无,等待补充.

    记忆方法

    暂无,等待补充.

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