from The Century Dictionary.
- noun A substance (C40H31O2) which remains undissolved on dissolving mastic in alcohol. It amounts to about a tenth of the mastic employed, and has while moist all the characters of caoutchouc, but becomes brittle when dried.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Chem.) A white, amorphous, tenacious substance resembling caoutchouc, and obtained as an insoluble residue of mastic.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun organic chemistry A white
amorphoussubstance resembling rubber, obtained as an insoluble residueof mastic.
from Wiktionary, Creative Commons Attribution/Share-Alike License
mastic + -in
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