The Collaborative International Dictionary of English v.0.48:

Lenticula \Len*tic"u*la\ (l[e^]n*t[i^]k"[-u]*l[.a]), n.; pl. E.
   Lenticulas (-l[.a]z), L. Lenticul[ae] (-l[=e]). [L. See
   Lenticel.]
   1. (Med.) A kind of eruption upon the skin; lentigo; freckle.
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   2. (Opt.) A lens of small size.
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   3. (Bot.) A lenticel.
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