锕 系 元 素

ā xì yuán sùdictionary entry

Sources & editorial notes

Reference definitions: CC-CEDICT contributors and MDBG, CC BY-SA 4.0. Source release 2026-10-27T01:55:52Z. Imported 2026-10-27. Definition wording and meaning order are retained. Recognized pronunciation references are displayed with tone marks; the original source record is available below.

Source record: cd-bf22b1201d854c3a. Source SHA-256: bbc4b27f26bee1a262f4d7939667a040c7857c7fc0200a2fa7a86d3352a09eae.

Original source entry:

錒系元素 锕系元素 [a1 xi4 yuan2 su4] /actinoids (rare earth series), namely: actinium Ac89 錒|锕[a1], thorium Th90 釷|钍[tu3], protoactinium Pa91 鏷|镤[pu2], uranium U92 鈾|铀[you2], neptunium Ne93 鎿|镎[na2], plutonium Pu94 鈈|钚[bu4], americium Am95 鎇|镅[mei2], curium Cm96 鋦|锔[ju2], berkelium Bk97 錇|锫[pei2], californium Cf98 鐦|锎[kai1], einsteinium Es99 鎄|锿[ai1], fermium Fm100 鐨|镄[fei4], mendelevium Md101 鍆|钔[men2], nobelium No102 鍩|锘[nuo4], lawrencium Lr103 鐒|铹[lao2]/

Reference definitions and teaching material have separate provenance.

Reference information

The definitions above are from CC-CEDICT. Examples and usage notes are available on selected entries.

Character information

View the individual characters. Their meanings do not necessarily explain the meaning of the whole word.

Other forms in these source records: 錒系元素

锕
ā
actinium (chemistry)
系
xì
to connect / to relate to / to tie up / to bind / to be (literary) / system / department / faculty / to arrest / to worry
jì
to tie / to fasten / to button up
元
yuán
currency unit (esp. Chinese yuan) / (bound form) first / original / primary / (bound form) basic / fundamental / (bound form) constituent / part / (prefix) meta- / (math.) argument / variable / era (of a reign) / (Tw) (geology) eon
Yuán
surname Yuan / Yuan dynasty (1279–1368)
素
sù
raw silk / white / plain, unadorned / vegetarian (food) / essence / nature / element / constituent / usually / always / ever

Reference definitions from CC-CEDICT.