Definition of Illinoian in English:

Illinoian

Line breaks: Illi|noi¦an
Pronunciation: /ˌɪlɪˈnɔɪ(j)ən
 
/

adjective

Geology
1Relating to or denoting a Pleistocene glaciation in North America, preceding the Wisconsin and approximating to the Saale of northern Europe.
More example sentences
  • This preserve is located on a käme (a hill or mound of stratified drift deposited by glacial meltwater) formed during the Illinoian glacial epoch.
  • These well-drained, sloping soils developed on Illinoian glacial till overlain with loess and have a compact fragipan that restricts root growth.
  • The forest studied in Pike County, Illinois was on Illinoian glacial till in the Glaciated Section of the Mississippi River Border Division.
1.1 (as noun the Illinoian) The Illinoian glaciation or the system of deposits laid down during it.

Origin

mid 19th century: from Illinois + -an.

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Word of the day erroneous
Pronunciation: ɪˈrəʊnɪəs
adjective
wrong; incorrect