rigi-, rig-

In engineering, a supporting structure which is designed to eliminate unwanted vibrations.

1. The physical property of being stiff and resisting bending; not flexible or pliant.
2. Marked by a lack of flexibility; rigorous and exacting.
3. Scrupulously maintained or performed: "The military training center practiced rigidness in discipline."
4. Unbending, firm, inflexible.

1. Unrelenting strictness or toughness in dealing with people or things and an unwillingness to make concessions.
2. The application of precise and exacting standards when doing something.
3. An experience of great hardship or difficulty: "His father had to suffer the rigors of life on the battlefront during the war."
4. Severe weather or the harshness of weather.
5. Rigidity of the body or a stiffness and lack of response to stimuli in body organs, muscles, or tissues.
6. A sudden attack of shivering and coldness with high temperature, called the cold stage, followed by a sense of heat and profuse perspiration, called the hot stage; for example, at the beginning of a fever.
7. A shivering or shaking of the body and limbs occurring in association with a fever of infectious origin; shaking chills.
8. Etymology: from Old French rigor, from Latin rigorem, rigor, "numbness, stiffness, rigor"; from Latin rigere, "to be stiff".

1. Stiffness of death; the stiffening of the muscles that occurs several hours after someone dies.
2. Stiffening of the body, from one to seven hours after death, from hardening of the muscular tissues as a result of the coagulation of the myosinogen and paramyosinogen. It disappears after one to five or six days, or when decomposition begins.
3. The postmortem stiffening of the voluntary and involuntary muscles of the body presenting a board-like rigidity to the entire body.

The development of rigor mortis may be poor or incomplete in elderly, very young, or severely debilitated individuals.

The shorter muscle groups develop rigor mortis faster than the longer muscle groups; however, muscles that were strongly exerted immediately before death, develop rigor mortis first regardless of their length, which is of potential importance in forensic medicine.

An earlier term for Parkinson's disease.

1. Rigidity in principle or practice, strictness; as opposed to laxity.
2. Harshness or strictness in conduct, judgment, or practice.
3. Adoption of strict morality; for example, in Roman Catholic philosophy, the theory that in matters of moral choice the stricter course of action should be taken.
4. Harshness or strictness in conduct, judgment, or practice.

1. Someone who is of strict or rigid principles or manners.

In general, a person who adheres to severity or purity in anything.

2. Characterized by strictness or severity in principles or practice; rigid; strict; exacting.

1. Demanding strict attention to rules and procedures; such as, having rigorous discipline.
2. Rigidly accurate; allowing no deviation from a standard; extremely precise and exacting.

Referring to being severely exact, stern, inflexible, precise, or accurate; such as, doing rigorous research.

The Canadian and U.K. spelling of rigor; meaning: the application of precise and exacting standards when doing something.

The resistance of the eye to changes in shape with the changes in intraocular pressure of the fluid (vitreous) contained within the eye and exerts on the globe (lining of the eyeball) which is a feature of glaucoma.

Glaucoma is a group of eye diseases characterised by an increase in intraocular pressure which causes pathological changes in the optic disk and typical defects in the field of vision.

The contraction of uterine musculature just above the cervix (necklike opening to the uterus where a baby or fetus can grow), resulting in relative rigidity of the cervix.

The contraction of one or more skeletal muscles caused by immersion into water.