foraminifer

Thân thiện

A foraminifer drifts among plankton in the ocean.

Definition

1. Noun:
   • A marine microorganism having a calcareous shell with openings where pseudopods protrude: A foraminifer is a single-celled organism, or protist, that lives primarily in marine environments. It is characterized by its shell, called a test, which is typically made of calcium carbonate and features numerous small openings (foramina) through which it extends long, thread-like projections called pseudopods for movement and feeding.

Usage Examples

• Noun:
  • The ocean sediment sample was rich in fossilized foraminifers, providing clues about ancient climates.
  • Under the microscope, the intricate shell of the living foraminifer was clearly visible.

Advanced Usage

• In scientific contexts: The term is used precisely in paleontology, marine biology, and geology. The plural form "foraminifera" is often used to refer to the entire group or order.
  • The study of foraminifera, known as foraminiferology, is crucial for biostratigraphy.

Variants and Related Words

• Foraminifera (n, plural): The order or group to which these organisms belong.
  • Foraminifera are among the most common marine plankton.
• Foram (n, informal): A common abbreviated form used by scientists.
  • The core sample contained various species of forams.

Synonyms

• Foram (informal abbreviation).
• Testate rhizopod (a more general biological term describing shelled protists with pseudopods).

Related Phrases and Terms

• Foraminiferal ooze: A type of deep-sea sediment largely composed of the calcareous shells of foraminifers.
  • The seafloor was covered in a layer of foraminiferal ooze.

Học thuật

Noun

1. marine microorganism having a calcareous shell with openings where pseudopods protrude

Từ đồng nghĩa

• foram