Precambrian
adjective Date: 1864 of, relating to, or being the earliest era of geological history or the corresponding system of rocks that is characterized especially by the appearance of single-celled organisms and is equivalent to the Archean and Proterozoic eons — see geologic time table • Precambrian noun

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • precambrian — PRECAMBRIÁN, Ă, precambrieni, e, s.n., adj. 1. s.n. Prima eră din istoria Pământului. 2. adj. Care aparţine precambrianului (1), privitor la precambrian. [pr.: bri an] – Din fr. précambrien. Trimis de oprocopiuc, 07.04.2004. Sursa: DEX 98 … …   Dicționar Român

  • Precambrian — [prē kam′brē ən] adj. [sometimes p ] designating or of the division of geologic time covering all the time before the Cambrian Period, equivalent to the Archean Eon and the Proterozoic Eon designating or of the division of geologic time covering… …   English World dictionary

  • Precambrian — 1864, from PRE (Cf. pre ) + CAMBRIAN (Cf. Cambrian) …   Etymology dictionary

  • Precambrian — ► ADJECTIVE Geology ▪ relating to the earliest aeon of the earth s history, preceding the Cambrian period and ending about 570 million years ago, a time when living organisms first appeared …   English terms dictionary

  • Precambrian — For the album by German band The Ocean, see Precambrian (album). Precambrian Period 4567.17–542 million years ago …   Wikipedia

  • Precambrian — /pree kam bree euhn, kaym /, Geol. adj. 1. noting or pertaining to the earliest era of earth history, ending 570 million years ago, during which the earth s crust formed and life first appeared in the seas. See table under geologic time. n. 2.… …   Universalium

  • Precambrian — Pre•cam•bri•an or Pre Cam•bri•an [[t]priˈkæm bri ən, ˈkeɪm [/t]] adj. 1) gel noting or pertaining to the earliest era of earth history, ending 570 million years ago, during which the earth s crust formed and life first appeared in the seas 2) gel …   From formal English to slang

  • Precambrian — /ˌpriˈkæmbriən/ (say .pree kambreeuhn) Obsolete –adjective 1. relating to the time or systems of rocks older than the Cambrian. –noun 2. the geological period, era, or systems of rocks older than the Cambrian, comprising the longest period of… …   Australian English dictionary

  • Precambrian — adjective Relating to the eons before the Phanerozoic …   Wiktionary

  • precambrian —   a span of geologic time lasting from 4600m to 570m years ago …   Geography glossary

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