lower devonian
1lower — lower1 [lō′ər] adj. [compar. of LOW1] 1. in a place or on a level below another [lower lip] 2. inferior in rank, authority, or dignity [the lower classes] 3. less in quantity, degree, value, intensity, etc. 4 …
2Devonian Period — Interval of geologic time from 417 to 354 million years ago; it was the fourth period of the Paleozoic Era. During the Devonian, a giant continent was situated in the Southern Hemisphere (see Gondwana), and other landmasses were located in the… …
3lower — lower1 lowerable, adj. /loh euhr/, v.t. 1. to cause to descend; let or put down: to lower a flag. 2. to make lower in height or level: to lower the water in a canal. 3. to reduce in amount, price, degree, force, etc. 4. to make less loud: Please… …
4lower — I low•er [[t]ˈloʊ ər[/t]] v. t. 1) to cause to descend; let or put down: to lower a flag[/ex] 2) to make lower in height or level: to lower the water in a canal[/ex] 3) to reduce in amount, price, degree, or force 4) to make less loud or lower in …
5lower — I. /ˈloʊə / (say lohuh) adjective 1. comparative of low1. 2. (often upper case) Geology denoting an earlier division of a period, system, or the like: the Lower Devonian. –verb (t) 3. to reduce in amount, price, degree, force, etc. 4. to make… …
6Devonian — For the Celtic language, see Southwestern Brythonic language; for the residents of the English county, see Devon. Devonian Period 416–359.2 million years ago …
7lower vascular plant — ▪ biology Introduction formerly pteridophyte, also called vascular cryptogam, any of the spore bearing vascular plants, including the ferns, club mosses, spike mosses, quillworts, horsetails, and whisk ferns. Once considered of the… …
8Devonian — 1. adjective a) of a geologic period within the Paleozoic era; comprises lower, middle and upper epochs from about 415 to 360 million years ago b) Of or pertaining to the English region of Devon. 2. noun …
9The Great Devonian Controversy — was the result of differences in interpretation of rock formations in Devon, England that was eventually resolved in 1839.In mapping the strata of Wales, Roderick Murchison and Adam Sedgwick wrote Silurian and Cambrian systems (1835) while Henry… …
10fish — fishless, adj. /fish/, n., pl. (esp. collectively) fish, (esp. referring to two or more kinds or species) fishes, v. n. 1. any of various cold blooded, aquatic vertebrates, having gills, commonly fins, and typically an elongated body covered with …
