• WordNet 3.6
    • n lunula a crescent-shaped metal ornament of the Bronze Age
    • n lunula the crescent-shaped area at the base of the human fingernail
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Webster's Revised Unabridged Dictionary
  • Interesting fact: The lunula is the half-moon shaped pale area at the bottom of finger nails.
    • n Lunula (Anat. & Zoöl) Same as Lunule.
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Century Dictionary and Cyclopedia
    • n lunula Something which is shaped like a little moon or narrow crescent; a lunule or lunulet.
    • n lunula Specifically— The free crescentic edge and adjoining thin part of a semilunar valve of the heart.
    • n lunula The small white semilunar mark at the base of the human fingernails.
    • n lunula A crescentic impression on some bivalve shells; a lunule.
    • n lunula A small semicircular or crescentic spot of color; a lunulet.
    • n lunula [capitalized] A generic name given by Hitchcock to ichnolites of uncertain character.
    • n lunula In mathematics, a lune.
    • n lunula In entomology, a small depression on the frons of a dipterous insect.
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Chambers's Twentieth Century Dictionary
    • n Lunula a crescent-like appearance, esp. the whitish area at the base of the nails
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Webster's Revised Unabridged Dictionary
L., prop., a little moon. See Lunule
Chambers's Twentieth Century Dictionary
L. lunarisluna, the moon—lucēre, to shine.


In literature:

These lunulae are found in profusion all over Ireland.
"The Glories of Ireland" by Edited by Joseph Dunn and P.J. Lennox
Lunula: a small lunule or crescent.
"Explanation of Terms Used in Entomology" by John. B. Smith
The earliest of the Irish gold ornaments are the flat gold collars known as lunulae.
"The Bronze Age in Ireland" by George Coffey
We call them lunulae.
"L'Aiglon" by Edmond Rostand

In science:

The successful (among others) attempt was driven by the remark that one needed to lower the y–coordinate at 2 e2a (i.e. to eliminate a “lunula” between quadrature by 1 the vicarious hypothesis orbit and the observed orbit).
Quasi periodic motions from Hipparchus to Kolmogorov