🇯🇵Japanese Source WordCode: JA

二重結合

Pronunciation / Transliteration: nijū ketsugō

🇬🇧 Direct English Meaning:
Double-bonding/ˈdʌb.əlˌbɒn.dɪŋ/
nounCEFR C1 (Advanced)Top #28500 frequency
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🇯🇵 Example Sentence in Japanese:

"エチレン分子には炭素間の二重結合が存在します。"

Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    A covalent chemical bond between two atoms involving four bonding electrons rather than two.

    "The presence of a double-bonding interaction between the carbon atoms significantly increases molecular rigidity."
  2. 2

    The formation of two simultaneous or mutually reinforcing emotional or relational attachments.

    "In early childhood psychology, double-bonding with multiple primary caregivers can shape complex interpersonal dynamics later in life."

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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from the adjective 'double' (from Old French doble, from Latin duplus) combined with 'bonding' (from bond, of Germanic origin related to band). The chemical term emerged in the 19th century with the development of valence theory in structural chemistry to describe shared electron pairs between atoms.

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