turtle

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/ˈtɜːtəl/ English

Definitions

Any land or marine reptile of the order Testudines, characterised by a protective shell enclosing its body. See also tortoise.
(specifically) A marine reptile of that order.
An Ancient Roman attack method, where the shields held by the soldiers hide them, not only left, right, front and back, but also from above.
A type of robot having a domed case (and so resembling the reptile), used in education, especially for making line drawings by means of a computer program.

To flip over onto the back or top; to turn upside down.
To turn and swim upside down.
To hunt turtles, especially in the water.
To build up a large defense force and strike only punctually, rather than going for an offensive strategy.