BSL Sign Language Dictionary

Search and compare thousands of words and phrases in British Sign Language (BSL). The largest collection online.

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How to sign: igneous rock produced by eruption and solidified on or near the earth's surface; rhyolite or andesite or basalt
"volcanic rock includes the volcanic glass obsidian";

volcanic in BSL Watch how to sign volcanic in British Sign Language
volcanic - University of Wolverhampton
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