Term: cracking: the process whereby heavy molecules of naphtha or petroleum are broken down into hydrocarbons of lower molecular weight (especially in the oil-refining process)
Candidate hypernym: chemical process: (chemistry) any process determined by the atomic and molecular composition and structure of the substances involved → 1
Candidate hypernym: chalk dust: dust resulting from writing with a piece of chalk → 0
Candidate hypernym: collodion: a colorless syrupy solution of pyroxylin in ether and alcohol; used as a coating for wounds or photographic films → 0
Candidate hypernym: flying start: a racing start in which the contestants are already in full motion when they pass the starting line → 0
Candidate hypernym: linear regression: the relation between variables when the regression equation is linear: e.g., y = ax + b → 0
Candidate hypernym: ring-necked parakeet: African parakeet → 0
Candidate hypernym: spike heath: small evergreen mat-forming shrub of southern Europe and Asia Minor having stiff stems and terminal clusters of small bell-shaped flowers → 0
Candidate hypernym: stratification: forming or depositing in layers → 0
Candidate hypernym: crispness: an expressive style that is direct and to the point → 0
Candidate hypernym: genus diomedea: type of the Diomedeidae → 0
Candidate hypernym: grazing fire: fire approximately parallel to the ground; the center of the cone of fire does rise above 1 meter from the ground → 0