Definition

1. Adjective:
   • Relating to the chorion: Pertaining to or associated with the chorion, which is the outermost fetal membrane surrounding the embryo in mammals, reptiles, and birds. It contributes to the formation of the placenta in mammals.

Usage

• The adjective chorionic is used primarily in medical and biological contexts to describe structures, processes, or substances associated with the chorion.
• It typically functions attributively, meaning it comes before and modifies a noun (e.g., tissue).

Examples

• Adjective:
  • The doctor analyzed the chorionic villus sample for genetic testing.
  • Chorionic gonadotropin is a hormone produced during pregnancy.
  • The chorionic membrane plays a vital role in fetal development.

Advanced Usage

• "Chorionic villus sampling (CVS)": A prenatal test where a sample of chorionic villi (tiny finger-like projections on the chorion) is taken to diagnose genetic abnormalities.
  • She underwent chorionic villus sampling to check for any chromosomal conditions.

Variants and Related Words

• Chorion (n): The outermost membrane surrounding an embryo.
  • The chorion fuses with the allantois to form the chorioallantoic membrane in birds.
• Chorioallantoic (adj): Relating to or formed by the fusion of the chorion and the allantois.
  • The chorioallantoic membrane is used in some viral research.

Synonyms

• None precise: There are no common direct synonyms. In specific contexts, "of the chorion" or "pertaining to the chorion" can be used as descriptive phrases.

Related Phrases

• Chorionic cavity: The fluid-filled space between the chorion and the amnion in early embryonic development.
• Chorionic plate: The part of the chorion that gives rise to the chorionic villi.

Related Idioms

• None: There are no common idioms using the word chorionic.

Adjective

1. of or relating to a chorion
   • a chorionic villus is a minute vascular projection on the fetal chorion