An isthmus is a land bridge bordered on both sides by water that connects two larger bodies of land. A narrow strip of land with sea on either side. (dictionary.com) An Isthmus is a narrow strip of land connecting two larger land areas usually with water on either side. Of note, the Isthmus of Corinth connects the peninsula of Peloponnese with the rest of the Greek peninsula, the Isthmus of Panama connects the continents of North and South America (the Americas), and the Isthmus of Suez in Egypt connects Africa and Asia (or Eurasia).
straight bond. Definition. Bond which will pay back the principal on its maturity date, will pay a specified amount of interest on specific dates, and does not carry a conversion privilege or other special features.
Types of molecular structure. A bond angle is the geometric angle between two adjacent bonds. Some common shapes of simple molecules include: Linear: In a linear model, atoms are connected in a straight line. The bond angles are set at 180Â°. For example, carbon dioxide and nitric oxide have a linear molecular shape. Trigonal planar: Molecules with the trigonal planar shape are somewhat triangular and in one plane (flat).