BioScience Dictionary

 
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Ot.

Found Oil 261 times.

Displaying results 1 to 10.

1. Acetone (2-propanone)
A colorless, flammable liquid which is used as a solvent (it is most familiar as the solvent in nail polish remover). The simplest ketone , it mixes with water, ethyl alcohol , and most oils. It melts at -95.4 C. and boils at 56.2 C. It is naturally found in very tiny quantities in the body fluids and tissues of healthy people and in somewhat larger amounts in people suffering from diabetes or starvation.

2. Acrylonitrile
A colorless liquid which will mix somewhat with water, mixes well with all common organic solvent s, and is toxic, carcinogen ic (cancer-causing), and a fire hazard. Freezing point: -83 C. Boiling point: 77.5-77.9 C. It is used as a monomer for acrylic fibers and acrylic rubber and other industrial purposes.

3. Agrobacterium tumefaciens
Agrobacterium tumefaciens is a Gram-negative bacterium found in soil which causes crown gall disease in plants (which causes tumor s to form at the crown and at the junction of the root and stem). The tumors are caused by the Ti plasmid in the bacterium; this plasmid is being heavily researched by plant genetic engineers because it is a useful way to introduce new genes into a plant cell.

4. Agronomy
The scientific study of soil management and crop production.

5. Alfisols
Soils having significantly more clay in the B-horizon than in the A-horizon and high base status.

6. Antifoam agent
A chemical that reduces the surface tension of foams that form on the surface of broths in fermentor s because of aeration or agitation. Stearyl decanol, octal decanol, vegetable oils, silicon es, sulfonates, and polypropylene glycol are typically used, though they can cause problems in refining the broth later on.

7. Aqua bulliens (aq. bull.)
This Latin term, which is frequently used in medicine, means "boiling water".

8. Aqualfs
Soils with an aquic or peraquic moisture regime and having clay accumulating in the B-horizon ; wet alfisol s.

9. Aquents
Soils with an aquic or peraquic moisture regime and lacking distinct soil horizons in the subsoil; wet entisol s.

10. Aquepts
Soils with an aquic moisture regime and showing some soil development in the B-horizon ; wet inceptisol s.


View web definitions »

Learn more about Oil »