1. external image atom-with-electrons.gifatom- (physics and chemistry) the smallest component of an element having the chemical properties of the element.
  2. external image 462px-Diagram_human_cell_nucleus_numbered_version.svg.pngnucleous- a part of the cell containing DNA and RNA and responsible for growth and reproduction --
  3. external image atom.gif
    external image atom.gif
    element- component: an abstract part of something; "jealousy was a component of his character"; "two constituents of a musical composition are melody -
  4. external image 558px-Electron_shell_079_Gold.svg.pngelectron-an elementary particle with negative charge
  5. external image tim_isoth.gifisotope- one of two or more atoms with the same atomic number but with different numbers of neutrons
  6. external image Grey_Rigid_PVC_Compound_For_Fitting_Injection.jpgcompound- intensify: make more intense, stronger, or more marked; "The efforts were intensified", "Her rudeness intensified his dislike for her"; "Pot smokers claim it heightens their awareness"; "This event only deepened my convictions"
  7. external image 96905-004-CCA02811.gifionic bond- a chemical bond in which one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ion
  8. external image ion_placement_detail.pngion- a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons
  9. external image lewstrc1.gifcovalent bond- a chemical bond that involves sharing a pair of electrons between atoms in a molecule
  10. external image water_molecule_full_size_landscape.jpgmolecule- (physics and chemistry) the simplest structural unit of an element or compound
  11. van der waals forces-In physical chemistry, the van der Waals force (or van der Waals interaction), named after Dutch scientist Johannes Diderik van der Waals
  12. external image cohesion.gifcohesion- coherence: the state of cohering or sticking together
  13. external image cell_adhesion.jpgadhesion- abnormal union of bodily tissues; most common in the abdomen
  14. external image chocolate_cupcakes_mixture-712107.jpgmixture- (chemistry) a substance consisting of two or more substances mixed together (not in fixed proportions and not with chemical bonding)
  15. external image Solution-Team-International.gifsolution- a homogeneous mixture of two or more substances; frequently (but not necessarily) a liquid solution; "he used a solution of peroxide and water"
  16. external image 09fig01.pngsolute- the dissolved matter in a solution; the component of a solution that changes its state
  17. external image solvent%20ink_580.jpgsolvent- a liquid substance capable of dissolving other substances; "the solvent does not change its state in forming a solution"
  18. suspension- a mixture in which fine particles are suspended in a fluid where they are supported by buoyancy
  19. external image phscale.gifpH scale- pH: (from potential of Hydrogen) the logarithm of the reciprocal of hydrogen-ion concentration in gram atoms per liter; provides a measure
  20. external image Acrylic_Acid_Methyl_Acrylate_Copolymers_AA_AM_.jpgacid- acerb: harsh or corrosive in tone; "an acerbic tone piercing otherwise flowery prose"; "a barrage of acid comments"; "her acrid remarks make her ...
  21. external image NASA_Moon_base.gifbase- installation from which a military force initiates operations; "the attack wiped out our forward bases"
  22. external image b503696h-ga.gifbuffer- (chemistry) an ionic compound that resists changes in its pH
  23. external image Aluminium-trifluoride-monomer-3D-vdW.pngmonomer- a simple compound whose molecules can join together to form polymers
  24. external image carbohydrates_250x251.jpgcarbodrate- an essential structural component of living cells and source of energy for animals; includes simple sugars with small molecules as well
  25. external image 0192801015.monosaccharide.1.jpgmonosaccharide- a sugar (like sucrose or fructose) that does not hydrolyse to give other sugars; the simplest group of carbohydrates
  26. external image hydro2.gifpolysaccharide- any of a class of carbohydrates whose molecules contain chains of monosaccharide molecules
  27. external image lipid2.jpglipid-an oily organic compound insoluble in water but soluble in organic solvents; essential structural component of living cells (along with proteins
  28. external image nucleic.gifnucleic acid - (biochemistry) any of various macromolecules composed of nucleotide chains that are vital constituents of all living cells
  29. external image 300px-Nucleotides_syn1-resized-600.pngnucleotide- a phosphoric ester of a nucleoside; the basic structural unit of nucleic acids (DNA or RNA)
  30. external image RNA_sstrand.jpgribonucleic acid- biochemistry) a long linear polymer of nucleotides found in the nucleus but mainly in the cytoplasm of a cell where it is associated with ...
  31. external image protein.jpgprotein- any of a large group of nitrogenous organic compounds that are essential constituents of living cells; consist of polymers of amino acids
  32. external image dnastructure.jpgdeoxyribonucleic acid- (biochemistry) a long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix; associated
  33. external image aminoacidstruc.jpgamino acid- organic compounds containing an amino group and a carboxylic acid group; "proteins are composed of various proportions of about 20 common amino.
  34. external image photo3.gifchemical reaction- chemistry) a process in which one or more substances are changed into others; "there was a chemical reaction of the lime with the ground water"
  35. external image reactant.gifreactant- a chemical substance that is present at the start of a chemical reaction
  36. external image product_locator_img.jpgproduct- merchandise: commodities offered for sale; "good business depends on having good merchandise"; "that store offers a variety of products"
  37. external image Activation_energy.gifactivation energy- the energy that an atomic system must acquire before a process (such as an emission or reaction) can occur; "catalysts are said to reduce
  38. external image catalyst.gifcatalyst- (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
  39. external image EnzymeExample.jpgenzyme- any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions
  40. external image substrate.jpgsubstrate-the substance that is acted upon by an enzyme or ferment