
1) Appendage 2) Outgrowth 3) Process 4) Spicule
Found on
https://www.crosswordclues.com/clue/spiculum

1) Spicule
Found on
https://www.crosswordclues.com/clue/spiculum

Latin, meaning: sharp point, sting, spear, dart.
Found on
http://archives.nd.edu/sss.htm

A spiculum is a late Roman spear that replaced the pilum as the infantryman`s main throwing javelin around 250 AD. Scholars suppose that it could have resulted from the gradual combination of the pilum and two German spears, the angon and the bebra. As more and more Germans joined the Roman army, their culture and traditions became a driving forc....
Found on
http://en.wikipedia.org/wiki/Spiculum

• (n.) Same as Spicule.
Found on
http://thinkexist.com/dictionary/meaning/spiculum/

Javelin. late Roman pilum successor.
Found on
http://www.encyclo.co.uk/local/20764

A javelin or a Byzantine pilum successor.
Found on
http://www.encyclo.co.uk/visitor-contributions.php
Spic'u·lum noun ;
plural Spicula . [ Latin , a little point.]
(Zoology) Same as
Spicule .
Found on
http://www.encyclo.co.uk/webster/S/163

Type: Term Pronunciation: spik′yū-lŭm, -lă Definitions: 1. A spicule or small spike.
Found on
http://www.medilexicon.com/medicaldictionary.php?t=83685

spiculum 1. A spicular structure. 2. The dart of a snail. 3. The pointed tip of a sterigma. A sterigma is a slender, pointed structure arising from a basidium upon which a basidiospore (spores or reproductive elements of lower organisms) will develop.
Found on
http://www.wordinfo.info/words/index/info/view_unit/2006/

sharp point, sting, spear, dart.
Found on
https://www.math.ubc.ca/~cass/frivs/latin/latin-dict-full.html
No exact match found.