lenticle

American  

[len-ti-kuhl] / ˈlɛn tɪ kəl /

noun

1. a window in a clock case revealing the motion of the pendulum bob.

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lenticle British  

/ ˈlɛntɪkəl /

noun

1. geology a lens-shaped layer of mineral or rock embedded in a matrix of different constitution

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Etymology

Origin of lenticle

< Latin lenticula lentil, equivalent to lenti- (stem of lēns; lens ) + -cula -cle ¹

Example Sentences

Each ommatidium is an elongated cone with its broad extremity abutting against the corneal lenticle.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 6 "Celtes, Konrad" to "Ceramics" by Various

Each such complex of cells underlying the lenticle of a compound eye is called an “ommatidium”; the entire mass of cells underlying a monomeniscous eye is an “ommataeum.”

From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 6 "Armour Plates" to "Arundel, Earls of" by Various