actinoid

[ak-tuh-noid]

adjective

1. raylike; radiate.

actinoid

/ ˈæktɪˌnɔɪd /

adjective

1. having a radiate form, as a sea anemone or starfish

Word History and Origins

Origin of actinoid¹

First recorded in 1840–50; actin- + -oid

Example Sentences

Of the lowest among these orders, the Actinoid Polyps, our Actinia or sea-anemone is a good example.

From Project Gutenberg