1 of 2

noun (1)

plural -s
: a fossil coral of the family Heliolitidae


2 of 2

noun (2)

plural -s
: aventurine feldspar

Word History


Noun (1)

New Latin Heliolites, genus of corals, from heli- entry 1 + -lites (probably from French -lithe -lite)

Noun (2)

French héliolite, from hélio- heli- entry 1 + -lite

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Dictionary Entries Near heliolite

Cite this Entry

“Heliolite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heliolite. Accessed 7 Jun. 2023.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!