1. (n.) A wanderer with no fixed dwelling, and usually without the means of honest livelihood; a vagrant; a tramp. 1  2. (a.) Moving from place to place without a settled habitation; wandering. 2  3. (a.) Floating about without any certain direction; driven to and fro. 3  4. (a.) Being a vagabond; strolling and idle or vicious. 5. (v. i.) To play the vagabond; to wander like a vagabond; to stroll. Vagabond Jews (perierchomai; the Revised Version (British and American) strolling Jews) were persons who traveled about as professional exorcists (Acts 19:13).
A helix (pl: helixes or helices) is a type of smooth space curve, i.e. a curve in three-dimensional space. It has the property that the tangent line at any point makes a constant angle with a fixed line called the axis.
The alpha helix (Î±-helix) is a common secondary structure of proteins and is a righthand-coiled or spiral conformation (helix) in which every backbone N-H group donates a hydrogen bond to the backbone C=O group of the amino acid four residues earlier (hydrogen bonding).ince the Î±-helix is defined by its hydrogen bonds and backbone conformation, the most detailed experimental evidence for Î±-helical structure comes from atomic-resolution X-ray crystallography such as the example shown at right.