Definition

Noun: 1. A type of marine protozoan, specifically a foraminiferan, characterized by a calcareous shell (test) that is typically rounded and possesses numerous small, spine-like projections.

Usage

The word "globigerina" is a scientific term used primarily in marine biology, geology (especially paleontology and sedimentology), and oceanography. It refers to a genus of planktonic organisms whose fossilized shells form a significant component of deep-sea ooze.

Examples

• Under the microscope, the sediment sample was composed largely of globigerina ooze.
• The paleontologist identified the fossil as belonging to the genus Globigerina.
• Changes in the abundance of globigerina in core samples can indicate past shifts in ocean temperature.

Advanced Usage

• Globigerina ooze: A deep-sea sediment composed largely of the calcareous shells of dead globigerina and similar foraminifera. This term is a standard geological name for a specific type of biogenic sediment.
  • The ocean floor in that region is covered by a thick layer of Globigerina ooze.

Variants and Related Words

• Globigerinid (adj): Relating to or characteristic of the family Globigerinidae, which includes the genus .
  • The study focused on globigerinid foraminifera from the Miocene epoch.
• Foraminifera (n): The larger order of single-celled organisms (protozoans) to which globigerina belongs. This is the broader taxonomic category.

Synonyms

• Planktonic foraminiferan (This is a descriptive synonym specifying its ecological niche and taxonomic group).

Noun

1. marine protozoan having a rounded shell with spiny processes