
1) Ancient weapon 2) Blade weapon 3) Dacian weapon
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https://www.crosswordclues.com/clue/falx

Falx is a Latin word originally meaning sickle, but was later used to mean any of a number of tools that had a curved blade that was sharp on the inside edge such as a scythe. Falx was also used to mean a weapon, particularly that of the Thracians and Dacians, and later a siege hook used by the Romans themselves. == Dacian falx == In Latin texts t...
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http://en.wikipedia.org/wiki/Falx

• (n.) A curved fold or process of the dura mater or the peritoneum; esp., one of the partitionlike folds of the dura mater which extend into the great fissures of the brain.
Found on
http://thinkexist.com/dictionary/meaning/falx/
(CEREBRI) An extension of dura between the right and left hemispheres of the brain.
Found on
http://www.aans.org/Media/Glossary-of-Terminology

Battle-scythe.
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http://www.encyclo.co.uk/local/20764

(falks) pl. fal´ces Latin word meaning sickle.. In anatomy, it used to mean a sickle-shaped structure. falx cerebelli the fold of dura mater separating the cerebellar hemispheres. falx cerebri a sickle-shaped fold of dura mater in the longitudinal fissure, w...
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http://www.encyclo.co.uk/local/21001

A battle-scythe.
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http://www.encyclo.co.uk/visitor-contributions.php
Falx noun [ Latin , a sickle.]
(Anat.) A curved fold or process of the dura mater or the peritoneum; esp., one of the partitionlike folds of the dura mater which extend into the great fissures of the brain.
Found on
http://www.encyclo.co.uk/webster/F/6

Type: Term Pronunciation: fawlks, fawl′sēz Definitions: 1. A sickle-shaped structure.
Found on
http://www.medilexicon.com/medicaldictionary.php?t=31888

The term falx describes a curved fold or process of the dura mater or the peritoneum. The term is especially applied to one of the partition-like folds of the dura mater which extend into the great fissures of the brain.
Found on
http://www.probertencyclopaedia.com/browse/EF.HTM

falx (s), falces (pl) 1. A sickle-shaped structure or tissue. 2. Either the falx cerebri or the falx crebelli.
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http://www.wordinfo.info/words/index/info/view_unit/796/

falx, sickle.
Found on
https://aclandanatomy.com/Glossary.aspx

Latin = sickle, hence, the sickle-shaped falx cerebri and falx cerebelli, adjective - falciform.
Found on
https://www.encyclo.co.uk/local/21450
No exact match found.