récipientide

Récipientide is a term lacking a fixed definition in established scientific nomenclature. It appears as a neologism in informal or speculative discussions and is formed from the French récipient, meaning container, and the chemical suffix -ide, common in naming compounds.

In several usages, récipientide denotes a class of materials characterized by their ability to host or encase other species within their structure, effectively acting as molecular containers. This conceptual role is often linked to encapsulation technologies and host–guest systems, including examples such as coordination cages, metal–organic frameworks, cyclodextrins, and related architectures; however, those examples are illustrative rather than authoritative definitions of récipientide.

Because the term is not formally defined, its meaning varies by source, and it is more common in speculative writing or pedagogy than in peer‑reviewed science. There is no official IUPAC designation or consensus criteria to identify a substance as a récipientide.

See also: encapsulation; host–guest chemistry; supramolecular chemistry; cages and frameworks; fictional terms.