A covalent bond between the amine end of one amino acid and the acid end of another amino acid. PICTURE. peptides Short chains of amino acids. ~ /PEP-tide/ A covalent bond between two amino acids; forms when the amino group of one amino acid bonds to the carboxyl group of another and water is eliminated.
Home > Shopping Tools > Weather Station Glossary of Terms > wind vane (definition) A wind vane is a device that measures the direction of the wind. The wind vane is usually combined with the anemometer. Wind direction is the direction from which the wind is blowing.
The arrow design was favored as a wind vane on many farmsteads because of its accuracy, simplicity and economy. Using the basic elements of an arrow, with its point, long shaft and fletching (feathered vanes), this design moved easily to point into the wind when mounted on a rotating axis to a rooftop or cupola.