The systematic scientific investigation of quantitative properties and phenomena and their relationships, using statistical methods.

A kind of flagellate distinguished mainly by the presence of a pellicle composed of proteinaceous strips underneath the cell membrane, supported by dorsal and ventral microtubules.

A curved piece of wood attached to the bottom of a rocking chair or cradle that enables it to rock back and forth. / A rocking chair.

(zoology) Any member of the order †Haramiyida or family †Haramiyidae.