Impure dark-coloured sulphuric acid that has been used in the refining of petroleum.

(organic chemistry) Any compound that has six galacturonate groups / (organic chemistry) Any salt or ester of hexagalacturonic acid (hexamer of galacturonic acid)

simple past tense and past participle of share-herd

Given to hospitality; hospitable. / Tending to harbour (feelings, etc.); harbouring; protective.