(computing) An error that occurs when an operating system halts, because it has reached a condition where it can no longer operate safely.

plural of fatal system error

An integrated circuit (also known as a chip) that integrates all or most components of a computer or other electronic system.

(aviation) A collection of airports, heliports or other aviation facilities that serve a particular location.

(computing theory) A classical type system for the lambda calculus with parametric polymorphism, notable for its completeness and its ability to infer the most general type of a given program without programmer-supplied type annotations or other hints.

(botany) The structure comprising the roots of a plant.

(medicine) A system for reporting cervical or vaginal cytologic diagnoses, specifically Pap smear results. / (medicine) A similar system for cytopathology of thyroid nodules.

Alternative letter-case form of Solar System; the Sun and all the objects in orbit around it.

Any collection of heavenly bodies including a star or binary star, and any lighter stars, brown dwarfs, planets, and other objects in orbit.

(US, alternative in Canada) A system, policy or understanding based on trust in the honesty, honor, or integrity of others.