1. Plural of euglenid; single-celled organisms belonging to the phylum Euglenophyta, characterized by the presence of a flagellum and the ability to move and photosynthesize.
Usage: biology; plural form; also called euglenoids

Examples

• Euglenids are commonly found in freshwater environments such as ponds and lakes.
• Under the microscope, students observed euglenids moving rapidly through the water using their flagella.
• Many euglenids contain chlorophyll and can produce their own food through photosynthesis.
• The biology class studied euglenids as examples of protists that exhibit both plant and animal characteristics.
• Euglenids are often used in laboratory experiments to demonstrate cellular movement and nutrition.