Category:Demilune

Dem"i*lune`, n. Etym: [F. demi-lune.]

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.