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

　

单词	half-life
释义	WordReference Random House Learner's Dictionary of American English © 2024 ˈhalf-ˌlife or ˈhalf ˌlife, n. [countable], pl. -lives. Physicsthe time required for one half the atoms of a given amount of a radioactive substance to decay:a half-life of over 50,000 years. WordReference Random House Unabridged Dictionary of American English © 2024 half-life (haf′līf′, häf′-),USA pronunciation n., pl. -lives (-līvz′).USA pronunciation Physicsthe time required for one half the atoms of a given amount of a radioactive substance to disintegrate. [Pharm.]the time required for the activity of a substance taken into the body to lose one half its initial effectiveness. Informal Termsa brief period during which something flourishes before dying out. `Also, half′ life′, half′life′.` Also called half′-life pe′riod. half + life 1905–10 Collins Concise English Dictionary © HarperCollins Publishers:: half-life n the time taken for half of the atoms in a radioactive material to undergo decay
随便看	meditator mediterranean mediterranean climate mediterranean fever mediterranean flour moth mediterranean fruit fly mediterranean sea medium medium artillery medium bomber medium-dated medium frequency mediumistic medium octavo medium of exchange medium quarto medium-scale integration medium shot medium-sized medium strip medium wave medius medivac medlar medley

　

英语词典包含188688条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。

　

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间：2025/7/23 15:50:05