Definition

Relating to or resembling a star-like shape, often used to describe certain marine animals or structures that have a radial symmetry.

Example

The actinoid structure of the sea star allows it to capture prey effectively.

Conversation

Did you see that new exhibit at the museum?

Yes, the actinoid sculptures were amazing!

I loved how they looked like they were reaching out from the walls.

Exactly! They really brought a unique vibe to the whole space.

Synonyms & Antonyms

Root Explanation

Actinoid → It is formed from "actin" (from Greek "aktis", meaning ray or beam) and "-oid" (meaning resembling or like). The term "actinoid" refers to elements that resemble actinium, which are part of a group of radioactive elements that emit rays.

Memory Tip

Think of 'rays' ('actin') to remember that 'actinoid' refers to elements that are 'ray-like' in their properties.

Visually Confused Words