Demilune
Pronunciation : Dem"i*lune`
Part of Speech : n.
Etymology : [F. demi-lune.]
Definition : 1. (Fort.)
Defn: A work constructed beyond the main ditch of a fortress, and in front of the curtain between two bastions, intended to defend the curtain; a ravelin. See Ravelin.
2. (Physiol.)
Defn: A crescentic mass of granular protoplasm present in the salivary glands.
Note: Each crescent is made of polyhedral cells which under some circumstances are supposed to give rise to new salivary cells.
Source : Webster's Unabridged Dictionary, 1913