English Reference
Noun

rearrangement

n. C / U
C1 Advanced US /ɹiɝˈeɪndʒmənt/ UK /ɹˌiːɐɹˈeɪndʒmənt/ re·arrange·ment UK spelling rearrangement's, rearrangement's Chemistry

n.a chemical reaction where the atoms in a molecule move around to form a different structure. The same atoms are still there, but their order has changed.

n.a chemical reaction in which the structure of a molecule is altered without changing its molecular formula. Often involves the migration of atoms or groups within the molecule.


SIMPLE

The acid catalyzed the rearrangement of the double bond.

CONTEXTUAL

During the heating process, the compound underwent a structural rearrangement that increased its stability.

COMPLEX

The study focused on the thermal rearrangement of the starting material, which eventually led to the formation of a more complex and biologically active product.

The study attributes the change to energy from the shock and structural rearrangements that turn diamond into graphite.

Phys.org· 20 Aug 2026

The particles suddenly organize into a shear band: a thin plane of intense rearrangement slicing across the whole sample, with a sudden drop in stress.

Phys.org· 16 Aug 2026
This entry
Level C1 · Advanced
Frequency Occasional
Updated