tincture

Notes: - an alcoholic extract or solution of a non-volatile substance - extracts of leaves or other plant material most common - alcoholic extract should be at least 40-60% ethanol - other solvents include vinegar, glycerol, ether & propylene glycol

Specific

opium tincture of benzoin

References

- Wikipedia: tincture http://en.wikipedia.org/wiki/Tincture