noun
- Plural of globigerina; a genus of small marine protozoans with calcareous shells, commonly found in ocean sediments and used in paleoclimatic research.
Usage: scientific; technical; marine biology
Examples
- Globigerinas are abundant in deep-sea sediment cores.
- Scientists study globigerinas to understand past ocean temperatures.
- The shells of globigerinas accumulate on the ocean floor over millions of years.
- Globigerinas are single-celled organisms that drift in ocean currents.
- Paleontologists use globigerinas as indicators of ancient climate conditions.