Adjacent Words

Mesozoic definitions

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WordNet (r) 3.0 (2005)

adj
1: of or relating to or denoting the Mesozoic era n
1: from 230 million to 63 million years ago [syn: Mesozoic, Mesozoic era, Age of Reptiles]

Merriam Webster's

adjective Date: 1840 of, relating to, or being an era of geological history comprising the interval between the Permian and the Tertiary or the corresponding system of rocks that was marked by the presence of dinosaurs, marine and flying reptiles, ammonites, ferns, and gymnosperms and the appearance of angiosperms, mammals, and birds — see geologic time table • Mesozoic noun

Oxford Reference Dictionary

adj. & n. Geol. --adj. of or relating to an era of geological time marked by the development of dinosaurs, and with evidence of the first mammals, birds, and flowering plants. Usage: Cf. Appendix II. --n. this era (cf. CENOZOIC, PALAEOZOIC). Etymology: MESO- + Gk zoion animal

Webster's 1913 Dictionary

Mesozoic Mes`o*zo"ic, a. [Meso- + Gr. ? life, fr. ? to live.] (Geol.) Belonging, or relating, to the secondary or reptilian age, or the era between the Paleozoic and Cenozoic. See Chart of Geology.

Webster's 1913 Dictionary

Mesozoic Mes`o*zo"ic, n. The Mesozoic age or formation.