sacra

The doctor pointed to the patient's sacra on the X-ray.

Definition

1. Noun (plural of ):
   • Anatomy: "sacra" refers to the plural form of the sacrum, which is a triangular bone at the base of the spine, formed by the fusion of five vertebrae, situated between the lumbar vertebrae and the coccyx (tailbone). It is a key structural component of the pelvis.

Usage Examples

• Noun:
  • The sacra of different species vary in shape and size. (The plural sacrum bones of various animals differ anatomically.)
  • In human anatomy, the sacra provide support for the pelvic girdle. (The sacrum bones in humans help stabilize the pelvis.)

Advanced Usage

• "sacral" (adj): relating to the sacrum.
  • The sacral region of the spine is prone to injury in athletes. (The area around the sacrum is vulnerable.)

Variants and Related Words

• Sacrum (n, singular): the specific bone itself.

  • The sacrum connects the spine to the pelvis. (The singular bone.)

• Sacral (adj): pertaining to the sacrum.

  • Sacral nerves branch out from the spinal cord. (Nerves associated with the sacrum.)

• Sacralization (n): a congenital condition where the last lumbar vertebra fuses with the sacrum.

  • Sacralization can cause lower back pain. (An abnormal fusion.)

Synonyms

• None: "sacra" is a highly specific anatomical term with no direct synonyms in common usage. It is only used in medical or biological contexts to denote multiple sacrum bones.

Phrasal Verbs

• None: "sacra" is a noun and does not form phrasal verbs.

Related Idioms

• None: "sacra" is a technical term and does not appear in idiomatic expressions.