actinoid
|ac-ti-noid|
C1
/ˈæktɪˌnɔɪd/
series of elements
Etymology
Etymology Information
'actinoid' originates from the Greek word 'aktinos,' meaning 'ray,' combined with the suffix '-oid,' meaning 'resembling or like.'
Historical Evolution
'actinoid' was derived from the Greek word 'aktinos' and the suffix '-oid,' and eventually became the modern English word 'actinoid.'
Meaning Changes
Initially, it referred to elements resembling actinium, but over time it evolved to include a series of elements in the periodic table.
Meanings by Part of Speech
Noun 1
any of a series of 15 chemical elements with atomic numbers from 89 (actinium) to 103 (lawrencium) in the periodic table.
Uranium is an actinoid element.
Synonyms
Last updated: 2025/04/30 03:06