Dem"i*lune` (?), n. [F. demi-lune.]

1. Fort.

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.

A crescentic mass of granular protoplasm present in the salivary glands.

⇒ Each crescent is made of polyhedral cells which under some circumstances are supposed to give rise to new salivary cells.


© Webster 1913.

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