noun
- Members of the phylum Porifera; sponges, which are simple aquatic animals with porous bodies and no true tissues or organs.
Usage: plural of poriferan; scientific/biological term; used in marine biology and zoology
Examples
- Poriferans are among the oldest and simplest forms of animal life on Earth.
- Most poriferans live in marine environments, though some species inhabit freshwater.
- The body structure of poriferans allows water to flow through their pores for feeding.
- Scientists study poriferans to understand early animal evolution.
- Poriferans lack a brain, heart, and digestive system, yet they can feed and reproduce.