Capsul

Capsul is a term that does not have a single, widely recognized meaning. It is most often encountered as a misspelling of capsule or as a stylized brand name. In general encyclopedic usage, the standard term is capsule, which refers to several related concepts across disciplines.

Etymology and general usage: The word capsule comes from Latin capsula, a diminutive of capsa meaning box or case. The truncation capsul appears in informal writing or certain languages as a root form in compounds, but it is not a standard English form.

Biology and medicine: In biology the capsule is a gelatinous or tough outer layer surrounding cells in bacteria (bacterial capsule) or surrounding the seeds of some plants (seed capsule). In medicine, a capsule is a small shell that contains a drug. These senses use the full spelling capsule; capsul is not used as a formal term in these fields.

Other uses: Capsul may appear as a proper noun in branding or product names. Without a specific reference, capsul does not denote a consistent subject.

See also: Capsule; Capsule (biology); Capsule (medicine); Capsulation.