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| -a means of locating an object using an emitted sound |
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| -a noninvasive technique that uses ultrasound to record the functioning of the heart |
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| -formed in imitation of some natural sound |
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| -involuntary parrot like repetition of a word or phrase just spoken by another |
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Definition
| free from echoes and reverberations |
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Definition
| the outer part of the soild earth composed of rock |
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Definition
| prelated to the early stone age |
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| a very early and crude stine tool |
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| the proscess or method of printing from a metal or stone surface |
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Definition
| relating to thr sc=econd epoch of the tertiary period |
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