Single-Celled Organisms

noun a single-celled microscopic organism that has no definite shape and moves by constantly changing its form

• The scientist observed the movement of the single-celled organism known as an amoeba under the microscope.
• I heard that an amoeba can change its shape to fit into tight spaces.
• That guy is like an amoeba, always changing his mind and adapting to different situations.
• Her ideas seemed to flow and change shape like an ever-moving amoeba.

noun a unicellular organism

adjective describing an organism that consists of a single cell

• Unicellular organisms consist of a single cell that performs all necessary functions.
• Did you know that bacteria are unicellular?
• Those tiny organisms are just one-celled, they're unicellular!
• The artist's style is like a unicellular organism, simple yet effective.

noun a type of protozoan belonging to the Actinophryidae family

• The actinophryan is a type of marine protozoan that is characterized by its radiating pseudopodia.
• I saw a cool video of an actinophryan capturing its prey with its tentacle-like arms.
• That actinophryan looks like something out of a sci-fi movie!
• Her creativity radiates outwards like the pseudopodia of an actinophryan.