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

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Synonyms for lamella


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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

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Time Traveler for lamella

Time Traveler

The first known use of lamella was in 1678

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Cite this Entry

“Lamella.” Dictionary, Merriam-Webster, Accessed 24 Feb. 2020.

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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

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