Doorlaten

Doorlaten is a Dutch verb that means to allow something to pass through a barrier or boundary, or to admit someone or something. It is used both in literal situations, such as a gate letting people pass, and in figurative contexts, such as rules or filters permitting information or traffic to pass.

Etymology and usage: The word is formed from door, meaning through, and laten, to let. It is typically used with a direct object, as in “de poort laat reizigers door,” and can be combined with nouns to describe the act or result, such as doorlatenheid (the act of letting through) or doorlaatbaarheid (permeability).

Contexts and senses: In science and engineering, doorlaten describes permeability or the capacity of a material, membrane, or barrier to allow substances to pass. In information technology and telecommunications, it refers to whether data or network traffic is allowed to pass a filter, firewall, or screening point. In transport, security, and administrative processes, it covers the admission of people or vehicles according to rules or checks.

Examples: Een filter laat alleen relevante data door. Het membraan heeft een hoge doorlaatbaarheid voor water maar lage voor zoutionen. De poort laat reizigers door, nadat controles zijn voltooid.

See also: doorlaatbaarheid, permeabiliteit, filter, firewall.