请输入您要查询的英文单词:
单词
protactinium
释义
protactinium
/proh'tak tin"ee euhm/
,
n. Chem.
a radioactive, metallic element.
Symbol:
Pa;
at. no.:
91.
Also,
protoactinium
.
[
1915-20; PROT- + ACTINIUM
]
随便看
unimpatient
unimpawned
unimpeachable
unimpeached
unimpearled
unimpeded
unimpeding
unimpelled
unimperative
unimperial
unimperialistic
unimperious
unimpertinent
unimpinging
unimplanted
unimplicated
unimplicitly
unimplied
unimplorable
unimplored
unimportance
unimportant
unimported
unimporting
unimportunate
英语词典包含168451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:2025/3/28 10:14:49