Definition

1. Verb:
   • To stiffen or fuse a joint: "anchylose" means to cause a joint to become rigid or fixed, often due to the fusion of bones or the stiffening of surrounding tissues.
   • To become stiff or fused: The intransitive form refers to a joint itself becoming immobile or ankylosed (a medical term for abnormal bone fusion).

Usage Examples

• Transitive verb:
  • The disease can anchylose the vertebrae, leading to limited spinal movement. (The condition causes the bones of the spine to fuse together.)
• Intransitive verb:
  • After the injury, the knee joint began to anchylose, making walking painful. (The joint started to stiffen and become immobile.)

Advanced Usage

• "to anchylose a joint": to surgically or pathologically cause a joint to become rigid.
  • Surgeons may anchylose an unstable joint to provide stability. (Doctors may fuse the joint intentionally.)
• "to anchylose into a fixed position": to become permanently stiff in a specific posture.
  • The finger joints anchylosed into a bent position over time. (The joints fused while bent.)

Variants and Related Words

• Anchylosis (n): the condition of a joint becoming stiff or fused.
  • Anchylosis of the hip joint can severely affect mobility. (The stiffening of the hip joint.)
• Anchylosed (adj): describing a joint that has become stiff or fused.
  • The patient has an anchylosed wrist from chronic arthritis. (The wrist joint is immobile.)
• Anchylosing (adj): causing or tending to cause joint stiffening.
  • Anchylosing spondylitis is a type of arthritis that fuses the spine. (A disease that leads to spinal fusion.)

Synonyms

• Fuse: to join or become joined into a single unit.
• Stiffen: to make or become rigid.
• Immobilize: to prevent movement.
• Ankylose: an alternative spelling of "anchylose" (more common in modern medical usage).

Phrasal Verbs

• Anchylose up: (rare, informal) to become completely stiff.
  • After the surgery, the joint began to anchylose up. (The joint stiffened fully.)

Related Idioms

• Set in stone: (figurative) to become fixed and unchangeable.
  • The joint's condition set in stone after the disease advanced. (The stiffness became permanent.)

Note: This word is primarily used in medical contexts, especially in orthopedics and rheumatology. The spelling "ankylose" is more common in contemporary English.