See Also: Lock or Lock-in - Motor Sports(gambling)
tortoise(dictionary)
tortoise(medicine)
tortoise(encyclopedia)
tortoise(dictionary)
Hare and the Tortoise, The(dictionary)
Tortoise and the Hare, the(dictionary)
Tortoise Snack Cake(recipes)
Hep-lock u-p(health)
Lock(money)

lock-on (iou) and tortoise (sh)


lock-on (iou)



lock-on noun. M20.
[from lock on s.v. LOCK verb1.]
(The commencement of) automatic tracking. M20.
The establishment of a rigid physical connection. M20.

tortoise (sh)




Any of some 40 species (family Testudinidae) of slow-moving, terrestrial, herbivorous turtles, found in the Old and New Worlds but chiefly in Africa and Madagascar.

Tortoises have a high, domed shell, heavy elephantlike hind legs, and hard-scaled forelegs. The four North American species (genus Gopherus) have a brown shell, about 8-14 in. (20-35 cm) long, and flattened forelimbs adapted for burrowing. The common, or European, tortoise (Testudo graeca) has a shell about 7-10 in. (18-25 cm) long. Most species of giant tortoises on the Galapagos and Other islands are now rare or extinct. One captive Galapagos tortoise had a shell 4.25 ft (1.3 m) long and weighed 300 lbs (140 kg).


Galapagos tortoise (Geochelone elephantopus).

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