from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A white amorphous substance resembling rubber, obtained as an insoluble residue of mastic.
from the GNU version of the Collaborative International Dictionary of English
- n. A white, amorphous, tenacious substance resembling caoutchouc, and obtained as an insoluble residue of mastic.
from The Century Dictionary and Cyclopedia
- n. 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.
mastic + -in (Wiktionary)