see-sawing oscillation
1Manhattan — New York Island redirects here. For the Pacific island, see Teraina. For other uses, see Manhattan (disambiguation). Manhattan   Borough of New York City   New York County …
2insect — insectival /in sek tuy veuhl/, adj. /in sekt/, n. 1. any animal of the class Insecta, comprising small, air breathing arthropods having the body divided into three parts (head, thorax, and abdomen), and having three pairs of legs and usually two… …
