molecule

Definition:
1. The smallest unit, consisting of a group of atoms, into which a substance can be divided without a change in its chemical nature.
2. The simplest structural unit of an element or compound.

Use 'molecule' in a sentence:

• 1. The length of the chain molecule is proportional to the kinetic chain length.
• 2. This is often called the molecule of belonging.
• 3. And, you get a nonpolar molecule.
• 4. So, it's a nonsymmetric molecule.
• 5. Simply stated, a gas molecule can "evaporate" from a planet if it reaches a speed known as the escape velocity.
• 6. The whole thing is a single molecule.
• 7. Inside the reactor the large molecules are cracked into smaller molecules.
• 8. So tell me what this molecule does that makes it special.
• 9. It is a diatomic molecule.
• 10. Any molecule that affects a biological process.
• 11. The drag of those extra air molecules brought the satellite crashing to Earth.
• 12. As the water boils, the water molecules escape in large numbers.
• 13. The molecule is most famously found in fatty fish.
• 14. These reactive molecules are mopped up and made harmless by Vitamin E.
• 15. But the DNA molecule is passive.
• 16. The effect occurs because of a molecule called staphylococcal lipoteichoic acid that acts on keratinocytes.
• 17. Stable molecule, why would it want to fall apart.
• 18. Meteorites can contain thousands of organic molecules, including amino acids.
• 19. There's also rotational disorder if it's a molecule.
• 20. So I indicated the molecule.
• 21. To make use of the MMPs, Dr. Tsien attaches his fluorescent dye, along with some positive charges, to one side of a small hairpin-shaped protein molecule.
• 22. Instead of making a clean break, water evaporating from treetops tugs on the remaining water molecules, with that tug extending from molecule to molecule all the way down to the roots.
• 23. Likewise, if we look at fluorine in its diatomic molecule, it is 160 kilojoules per mole.
• 24. Such a molecule is called a meso compound.
• 25. Summer leaves are green because they are full of chlorophyll, the molecule that captures sunlight converts that energy into new building materials for the tree.
• 26. So would this be a stabilized molecule then?
• 27. You have a symmetric molecule, and let's see.
• 28. Of course the linear molecule wasn't like that.
• 29. Who, then, can calculate the course of a molecule?
• 30. In contrast, the nonenzymatic process adds glucose haphazardly to any of several sites along any available peptide chain within a protein molecule.
• 31. Because the molecule must be in one of the states.
• 32. Understanding these rare molecules will help chemists to find out what is achievable.
• 33. Water is a very unique molecule.
• 34. In other words, there's a free energy per molecule.
• 35. Its molecules can be agitated by microwave energy.
• 36. Cells can reproduce but only molecules can replicate.
• 37. These strands of molecules twine around each other to form cable-like structures.
• 38. The atoms bond together to form a molecule.
• 39. The molecule contains four carbon atoms arranged in a ring with a triple bond between two of them.
• 40. A molecule of an element consists of one or more atoms.
• 41. The energy that atoms and molecules can possess according to quantum theory is quantized.
• 42. Atoms of iron in the nail combine with atoms of oxygen from the air to form molecules of iron oxide, or rust.
• 43. A molecule of water is formed by combining two atoms of hydrogen and one atom of oxygen.
• 44. The DNA molecule is compounded from many smaller molecules.
• 45. A molecule of water consists of two atoms of hydrogen and one atom of oxygen.
• 46. Every substance, no matter what it is, is composed of very small particles called molecules.
• 47. The chemical structure of this particular molecule is very unusual.
• 48. Two atoms of hydrogen combine with one atom of oxygen to form a molecule of water.
• 49. The molecules in regular liquids are held together by relatively weak bonds.
• 50. Protein molecules compose all the complex working parts of living cells.
• 51. These may bind to receptor molecules on the surfaces of cells.
• 52. A methane molecule is composed of one carbon atom attached to four hydrogens.
• 53. Organic compounds contain carbon in their molecules.
• 54. Professor Orr has developed interesting ways of tagging chemical molecules using existing laboratory lasers.
• 55. Professor Bonnet has been working for many years on molecules of this type.
• 56. The molecules join together to form long strings.