la·​mel·​la | \ lə-ˈme-lə How to pronounce lamella (audio) \
plural lamellae\ lə-​ˈme-​(ˌ)lē How to pronounce lamellae (audio) , -​ˌlī \ also lamellas

Definition of lamella

: a thin flat scale, membrane, or layer: such as
a : one of the thin plates composing the gills of a bivalve mollusk
b : a gill of a mushroom

Keep scrolling for more

Synonyms for lamella


lamina, plate, scale

Visit the Thesaurus for More 

Examples of lamella in a Sentence

the gemstone's distinctive iridescence is caused by light passing from one lamella of crystal to another

Recent Examples on the Web

The beak’s two yellow ridges, called the lamella and the cere, lit up. Julissa Treviño, Smithsonian, "Puffin Beaks Are Fluorescent, and They’re Not the Only Ones," 9 Apr. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'lamella.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of lamella

1678, in the meaning defined above

History and Etymology for lamella

New Latin, from Latin, diminutive of lamina thin plate

Keep scrolling for more

Learn More about lamella

Dictionary Entries near lamella

lame duck







Statistics for lamella

Look-up Popularity

Time Traveler for lamella

The first known use of lamella was in 1678

See more words from the same year

Keep scrolling for more

More Definitions for lamella


la·​mel·​la | \ lə-ˈmel-ə How to pronounce lamella (audio) \
plural lamellae\ -​ˈme-​ˌlē How to pronounce lamellae (audio) , -​ˌlī How to pronounce lamellae (audio) \ also lamellas

Medical Definition of lamella

1 : an organ, process, or part resembling a plate: as
a : one of the bony concentric layers surrounding the haversian canals in bone
b(1) : one of the incremental layers of cementum laid down in a tooth
(2) : a thin sheetlike organic structure in the enamel of a tooth extending inward from a surface crack
2 : a small medicated disk prepared from gelatin and glycerin for use especially in the eyes lamellae of atropine

More from Merriam-Webster on lamella

Rhyming Dictionary: Words that rhyme with lamella

Thesaurus: All synonyms and antonyms for lamella

Comments on lamella

What made you want to look up lamella? Please tell us where you read or heard it (including the quote, if possible).


to spread over or through

Get Word of the Day daily email!

Test Your Vocabulary

The Exceptions Quiz III

  • one green toy robot amidst many red toy robots
  • Which of these words does not mean "nonsense"?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

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