asteroidea

[as-ter-oi-dee-uh]

asteroidea Definition

a class of echinoderms that includes the sea stars or starfishes.

Using asteroidea: Examples

Take a moment to familiarize yourself with how "asteroidea" can be used in various situations through the following examples!

• Example

  The Asteroidea are known for their five-point radial symmetry.

• Example

  Sea stars are a type of Asteroidea.

Phrases with asteroidea

• starfish

  a marine invertebrate with a flattened body and five or more radiating arms

  Example

  The tide pools were filled with colorful starfish.

• radial symmetry

  symmetry around a central axis, as in a starfish

  Example

  The Asteroidea are known for their five-point radial symmetry.

• tube feet

  small, flexible appendages used for movement and feeding in echinoderms

  Example

  The Asteroidea use their tube feet to move and capture prey.

Origins of asteroidea

from Greek 'aster' meaning 'star' and 'oeides' meaning 'like'

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Summary: asteroidea in Brief

'Asteroidea' [as-ter-oi-dee-uh] is a class of echinoderms that includes sea stars or starfishes. They are known for their five-point radial symmetry and tube feet, which they use for movement and feeding. Sea stars are a type of Asteroidea.