
1) Protection 2) Protective cover 3) Protective covering 4) Roman siege device
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https://www.crosswordclues.com/clue/testudo
[genus] Chersus Gmira, 1993 Testudo is a genus of tortoises found in North Africa, western Asia, and Europe. Several species are under threat in the wild, mainly from habitat destruction. They are small tortoises, ranging in length from 7.0 to 35 cm and in weight from 0.7 to 7.0 kg, although the extinct T. atlas{Verify source|date=February ...
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http://en.wikipedia.org/wiki/Testudo_(genus)

wheeled shelter used for protection from above attacks
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http://phrontistery.info/t.html

• (n.) A kind of musical instrument. a species of lyre; -- so called in allusion to the lyre of Mercury, fabled to have been made of the shell of a tortoise. • (n.) A cover or screen which a body of troops formed with their shields or targets, by holding them over their heads when standing close to each other. This cover resembled the bac...
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http://thinkexist.com/dictionary/meaning/testudo/

Tortoise formation.
Found on
http://www.encyclo.co.uk/local/20764

Origin: L, from testa the shell of shellfish, or of testaceous animals. ... 1. <zoology> A genus of tortoises which formerly included a large number of diverse forms, but is now restricted to certain terrestrial species, such as the European land tortoise (Testudo Graeca) and the gopher of the Southern United States. ... 2. A cover or screen ...
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http://www.encyclo.co.uk/local/20973

Literally, tortoise, this was a method of covering a group of soldiers with shields to protect them on all sides and above from missiles so that they could approach enemy fortified positions. The formation would have a shell like a tortoise, hence the name. Groups of 27 have been suggested, however multiples of 8 would seem to be more appropriate. ...
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http://www.encyclo.co.uk/visitor-contributions.php
Tes·tu'do noun ;
plural Testudines . [ Latin , from
testa the shell of shellfish, or of testaceous animals.]
1. (Zoology) A genus of tortoises which formerly included a large number of diverse forms, but is now restricted to certain terrestrial species, such a...
Found on
http://www.encyclo.co.uk/webster/T/33

The testudo was a Roman military formation employed especially in siege operations. The formation consisted of the soldiers holding their shields above their heads in an overlapping arrangement thereby forming a firm and unbroken covering. Thus protected the attacking party could approach the defenders until close enough to engage.
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http://www.probertencyclopaedia.com/browse/FT.HTM

The testudo is a kind of musical instrument. It was a species of lyre so called in allusion to the lyre of Mercury, fabled to have been made of the shell of a tortoise.
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http://www.probertencyclopaedia.com/browse/VT.HTM

[
n] - a movable protective covering that provided protection from above 2. [n] - type genus of the Testudinidae
Found on
http://www.webdictionary.co.uk/definition.php?query=Testudo

testudo (s) 1. Among the ancient Romans, a movable shelter with a strong and usually fireproof arched roof, used for protection of soldiers in siege operations. 2. A shelter formed by overlapping oblong shields, held by soldiers above their heads. 3. When capitalized, a genus of turtles, the land tortoise.
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http://www.wordinfo.info/words/index/info/view_unit/3865/
genus Testudo noun type genus of the Testudinidae
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.