dominios

Dominios is the Spanish plural of dominio. In Portuguese, the plural form is domínios. In English the corresponding term is domain. Across fields, dominio refers to a defined area, scope, or set of inputs and conditions under consideration. The term is used in mathematics, computing, and biology to denote modular or organized units or boundaries.

In mathematics, the domain of a function is the set of all inputs for which the function is defined. For example, f(x) = sqrt(x) has domain x ≥ 0. The domain is distinct from the codomain (the target set) and from the image (the actual outputs). The domain can be restricted by the function’s definition or by the context of a problem.

In computing and networking, a domain name is a human-readable label used to identify a resource on a network and to route traffic. Domain names are organized hierarchically in the Domain Name System (DNS), with top-level domains such as .com, .org and country codes like .es or .pt. A domain can have subdomains, for example blog.example.com. Domains are typically registered through registrars and mapped to DNS records (A, AAAA, MX, CNAME, TXT).

In biology, a domain is a distinct structural and functional unit within a protein or other biomolecule. Domains can fold independently and confer specific functions, such as a catalytic domain or a binding domain. Many proteins are multi-domain, and the arrangement of domains (domain architecture) is important for function and evolution.

The concept of dominios highlights a common motif across fields: a bounded, definable unit that models interactions within a larger system.