{Age of invertebrates}. See {Age}, and {Silurian}. [1913 Webster]
The Collaborative International Dictionary of English. 2000.
Age — ([=a]j), n. [OF. aage, eage, F. [^a]ge, fr. L. aetas through a supposed LL. aetaticum. L. aetas is contracted fr. aevitas, fr. aevum lifetime, age; akin to E. aye ever. Cf. {Each}.] 1. The whole duration of a being, whether animal, vegetable, or… … The Collaborative International Dictionary of English
Age of a tide — Age Age ([=a]j), n. [OF. aage, eage, F. [^a]ge, fr. L. aetas through a supposed LL. aetaticum. L. aetas is contracted fr. aevitas, fr. aevum lifetime, age; akin to E. aye ever. Cf. {Each}.] 1. The whole duration of a being, whether animal,… … The Collaborative International Dictionary of English
Moon's age — Age Age ([=a]j), n. [OF. aage, eage, F. [^a]ge, fr. L. aetas through a supposed LL. aetaticum. L. aetas is contracted fr. aevitas, fr. aevum lifetime, age; akin to E. aye ever. Cf. {Each}.] 1. The whole duration of a being, whether animal,… … The Collaborative International Dictionary of English
Age of fishes — Devonian De*vo ni*an, a. (Geol.) Of or pertaining to Devon or Devonshire in England; as, the Devonian rocks, period, or system. [1913 Webster] {Devonian age} (Geol.), the age next older than the Carboniferous and later than the Silurian; called… … The Collaborative International Dictionary of English
Karoo Ice Age — The Karoo Ice Age from 300–400 Ma (million years ago) was the second major period of glaciation of the Phanerozoic Eon. It is named after the glacial tills found in the Karoo region of South Africa where evidence for this ice age was first… … Wikipedia
Devonian age — Devonian De*vo ni*an, a. (Geol.) Of or pertaining to Devon or Devonshire in England; as, the Devonian rocks, period, or system. [1913 Webster] {Devonian age} (Geol.), the age next older than the Carboniferous and later than the Silurian; called… … The Collaborative International Dictionary of English
Invertebrate — In*ver te*brate, a. (Zo[ o]l.) Destitute of a backbone; having no vertebr[ae]; of or pertaining to the Invertebrata. n. One of the Invertebrata. [1913 Webster] {Age of invertebrates}. See {Age}, and {Silurian}. [1913 Webster] … The Collaborative International Dictionary of English
Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… … Universalium
Permian Period — Interval of geologic time, 290–248 million years ago. The last of the six periods of the Paleozoic Era, it follows the Carboniferous Period. During the Permian, the continents joined to form a single supercontinent, Pangea. Hot, dry conditions… … Universalium
coloration — colorational, adj. colorationally, adv. /kul euh ray sheuhn/, n. appearance with regard to color arrangement or use of colors; coloring: the bold coloration of some birds. [1605 15; COLOR + ATION] * * * ▪ biology Introduction in biology,… … Universalium
