Pronunciation: /ˈæk.tɪˌnaɪd/

Definitions of actinide

noun a series of chemically similar metallic elements with atomic numbers ranging from 89 to 103, found in the actinide series of the periodic table

Example Sentences

A1 Actinides are a group of chemical elements in the periodic table.

A2 Scientists study the properties of actinides to understand their behavior.

B1 The actinide series includes elements such as uranium and plutonium.

B2 Actinides have important applications in nuclear energy and medicine.

C1 Research on actinides is crucial for advancing our knowledge of nuclear chemistry.

C2 The complex chemistry of actinides poses challenges for scientists working in the field.

Examples of actinide in a Sentence

formal Actinides are a series of chemical elements in the periodic table that are radioactive.

informal I learned about actinides in my chemistry class, they're pretty interesting.

slang Actinides are like the rockstars of the periodic table, always causing a stir.

figurative The actinides are like the rebels of the periodic table, breaking all the rules with their radioactive properties.

Grammatical Forms of actinide

past tense

actinided

plural

actinides

comparative

more actinide

superlative

most actinide

present tense

actinides

future tense

will actinide

perfect tense

have actinided

continuous tense

is actiniding

singular

actinide

positive degree

actinide

infinitive

to actinide

gerund

actiniding

participle

actinided

Origin and Evolution of actinide

First Known Use: 1945 year
Language of Origin: Greek
Story behind the word: The word 'actinide' originates from the Greek word 'aktinos' meaning ray or beam.
Evolution of the word: The term 'actinide' was first used in 1945 to refer to a series of radioactive elements with atomic numbers ranging from 89 to 103. Over time, the term has become widely accepted in the field of chemistry to specifically denote this group of elements.