Science / Chemistry / Monodentate: A ligand that has only one atom that coordinates directly to the central atom in a complex. For example, ammonia and chloride ion are monodentate ligands of copper in the complexes [Cu(NH3)6]2+ and [c MORE
Entertainment / Literature / Palinode: Singing again): A poem, song, or section of a poem or song in which the poet renounces or retracts his words in an earlier work. Usually this is meant to apologize or counterbalance earlier material. MORE
Science / Biology / Acquired Immunodeficiency Syndrome (Aids): A collection of disorders that develop as a result of infection by the human immunodeficiency virus (HIV), which attacks helper T cells, crippling the immune system and greatly reducing the bodys abil MORE
Science / Biology / Internodes: The stem regions between nodes in plants. MORE
Science / Tides and Currents / Node Cycle: Period of approximately 18.61 Julian years required for the regression of the Moon's nodes to complete a circuit of 360?° of longitude. It is accompanied by a corresponding cycle of changing inclinat MORE
Science / Astrology / Planetary Node: The point at which a planet's path intersects the ecliptic; declination, 0?°. The term is usually reserved for nodes other than the Moon's Nodes. MORE