explosive
A substance capable of undergoing rapid and highly exothermic decomposition.
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fixative
Any compound used for the purpose of preserving biological tissues from decay in such a way as to allow for the preparation of thin, stained sections for subsequent histological study.
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antiseptic drug
A substance used locally on humans and other animals to destroy harmful microorganisms or to inhibit their activity (cf. disinfectants, which destroy microorganisms found on non-living objects, and antibiotics, which can be transported through the lymphatic system to destroy bacteria within the body).
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