Akademik

trade rat
noun
any of several bushy-tailed rodents of the genus Neotoma of western North America; hoards food and other objects
Syn: ↑packrat, ↑pack rat, ↑bushytail woodrat, ↑Neotoma cinerea
Hypernyms: ↑wood rat, ↑wood-rat
Hyponyms: ↑dusky-footed woodrat, ↑Neotoma fuscipes
Member Holonyms: ↑Neotoma, ↑genus Neotoma

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noun
Etymology: so called from its habit of replacing with some other article any article it takes away
: pack rat

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trade rat,
= pack rat (def. 1). (Cf.pack rat)

Useful english dictionary. 2012.