erratic

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er·rat·ic

(ĕ-rat'ik),
1. Synonym(s): eccentric (1)
2. Denoting symptoms that vary in intensity, frequency, or location.
[L. erro, pp. erratus, to wander]

erratic

[irat′ik]
Etymology: L, erraticus, wandering
deviating from the normal but with no apparent fixed course or purpose.

erratic

(ĭ-răt′ĭk) [L. errare, to wander]
Having an unpredictable or fluctuating course or pattern; wandering.

er·rat·ic

(ĕ-rat'ik)
1. Synonym(s): eccentric (1) .
2. Denoting symptoms that vary in intensity, frequency, or location.
[L. erro, pp. erratus, to wander]
References in periodicals archive ?
Hulterstadia cor and associated taxa, common in the Hulterstad Fauna of the erratic boulders on Oland, or related to it, occur in the Lelle section in the Fungochitina spinifera chitinozoan Zone, in the middle part of the Vormsi Stage.
Freek Rhebergen (Emmen) discusses Baltic Ordovician sponges (Porifera) recovered from erratic boulders in Neogene fluvial deposits of The Netherlands and northern Germany.
In addition to lithology and mineralogy of glacial deposits mentioned above, the published results include those on stratigraphy of Quaternary sediments, topography of Estonian bedrock, evolution and geomorphology of the Quaternary cover, evolution of the Baltic Sea and its ancient coastal formations, distribution of erratic boulders, development of large lakes, protection and complex use of Estonian mineral resources, environmental history, and nature protection.
Silicified erratic boulders and, usually more or less rectangular, siliceous Ordovician limestone boulders in the Berlin area were referred to as 'Backsteinkalk', after the characterization of 'certain brick stones' by K16den (1834).
Within this area of generally poor bedrock exposure, outcropping carbonatite, altered country rocks, and glacial erratic boulders contain anomalous to very high grades of Nb and Ta.