Having a bell-shaped or flared opening; designed with a bellmouth configuration for improved fluid dynamics.
Compound adjective from 'bellmouth' (bell + mouth) plus '-ed'. Describes the physical characteristic of something being shaped like a bell's opening.
Engineers love this term because it describes something very specific—a particular shape optimization that reduces drag and turbulence—yet most people would just say 'flared' without understanding the precise aerodynamic advantage.
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