FITs

Fits is the plural form of fit and may refer to several distinct concepts in medicine, engineering, fashion, and data formats. The meaning depends on context.

In medicine, a fit commonly means a seizure or convulsion, often used in British English. It can involve sudden loss of consciousness, muscle jerks, or abnormal sensations. Fits can be a feature of epilepsy but occur in other conditions as well. First aid includes protecting the person from harm, timing the episode, and calling for medical help if the seizure lasts unusually long, repeats, or if there are injuries or breathing problems.

In engineering and manufacturing, a fit describes how closely two parts, such as a shaft and a hole, match in size after manufacturing. Fits are categorized as clearance, interference, or transition fits depending on whether parts separate or overlap when assembled. Tolerances are specified by standards to ensure interchangeability of parts.

In clothing and garment design, a fit describes how a garment conforms to the body. The term fits is used to discuss sizing, ease, and tailoring. Good fit affects comfort, appearance, and function, and designers may grade patterns to fit different body measurements.

FITS, in astronomy and data archiving, stands for Flexible Image Transport System. It is a digital file format for storing scientific images, tables, and metadata. A FITS file typically contains a header with metadata followed by data units and is supported by many software tools in astronomy.