a drilling machine having a number of vertical spindles for drilling several holes in a piece simultaneously.
plural noun, Genetics. 1. a series of two or more pairs of genes responsible for the development of complex, quantitative characters, as size or yield. plural noun 1. (genetics) two or more genes that act as a unit, producing cumulative effects in the phenotype
noun, Biology. 1. fission into more than two new organisms. noun 1. (zoology) asexual reproduction in unicellular organisms, esp sporozoans, in which the nucleus divides a number of times, followed by division of the cytoplasm, to form daughter cells multiple fission mul·ti·ple fission (mŭl’tə-pəl) n. Division of the nucleus, simultaneously or successively, into a number […]
- Multiple fracture
multiple fracture n. The simultaneous fracture of several bones.
- Multiple fruit
noun 1. a fruit, such as a pineapple, formed from the ovaries of individual flowers in an inflorescence multiple fruit A fruit, such as a fig, mulberry, or pineapple, that consists of the ripened ovaries of more than one flower that are combined into a single structure. Compare accessory fruit, aggregate fruit, simple fruit.