John (Edmund Fisk Green; John Fisk) 1842–1901, U.S. philosopher and historian.
[mad-ern] /ˈmæd ərn/ (Show IPA), (Marie Augusta Davey) 1865–1932, U.S. actress.
1. a combining form meaning “cleft,” used in the formation of compound words: fissiparous. combining form 1. indicating a splitting or cleft: fissirostral
[fis-uh l] /ˈfɪs əl/ adjective 1. capable of being split or divided; cleavable. 2. Physics. /ˈfɪsaɪl/ adjective 1. (Brit) capable of undergoing nuclear fission as a result of the impact of slow neutrons 2. (US & Canadian) another word for fissionable 3. tending to split or capable of being split adj. 1660s, from Latin fissilis […]
[fish-uh n] /ˈfɪʃ ən/ noun 1. the act of cleaving or splitting into parts. 2. Also called nuclear fission. Physics. the splitting of the nucleus of an atom into nuclei of lighter atoms, accompanied by the release of energy. Compare (def 4). 3. Biology. the division of an organism into new organisms as a process […]
[fish-uh-nuh-buh l] /ˈfɪʃ ə nə bəl/ adjective, Physics. 1. capable of or possessing a nucleus or nuclei capable of undergoing : a fissionable nucleus; fissionable material. /ˈfɪʃənəbəl/ adjective 1. capable of undergoing nuclear fission as a result of any process Compare fissile (sense 1)