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1. Of, relating to, or forming an isthmus.
2. Of or relating to the Isthmus of Corinth, especially with regard to the biennial Pan-Hellenic games held there in antiquity.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈɪsθmɪən; ˈɪstmɪən; ˈɪsmɪən) or


(Physical Geography) relating to or situated in an isthmus


(ˈɪsθmɪən; ˈɪstmɪən; ˈɪsmɪən)
(Placename) relating to or situated in the Isthmus of Corinth or the Isthmus of Panama
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈɪs mi ən)

1. of or pertaining to an isthmus.
2. (cap.) of or pertaining to the Isthmus of Corinth or the Isthmus of Panama.
3. a native or inhabitant of an isthmus.
[1595–1605; < Latin isthmi(us) (< Greek ísthmios of a neck of land, derivative of isthmós isthmus)]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.


a person who is a native or inhabitant of an isthmus. — isthmian, adj.
See also: Anthropology
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.isthmian - of or relating to or forming an isthmus
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in classic literature ?
MESSENGER The Isthmian commons have resolved to make Thy husband king--so 'twas reported there.
A shock result looks highly unlikely the battle for a seat at Westminster - Ukip are 1-66 favourites - but an FA Cup surprise is a strong possibility with Isthmian Premier Maidstone attractive 7-2 shots to win in 90 minutes.
Isthmian League Premier Division side Thurrock will drop to the North section after the FA rejected their appeal against a three-point deduction for fielding Joel Barnett, who was ineligible having played for a Sunday side in Wakefield which folded with unpaid fines.
Despite living within striking distance of any number of south London's Football League clubs, he chose Bromley, his local side, then plying their trade in front of a few hundred people in the Isthmian League.
Though the new structure includes the Ryman --the old Isthmian League who celebrate their centenary in two years' time --the league is threatening legal action because its' membership will drop from 88 to 44.
Stevenage, from the Conference, had the more chances, but little Carshalton from the lower reaches of the Isthmian League turned in a creditable performance.
But they may wish they hadn't bothered as they suffered a 2-1 defeat at the hands of their Ryman Isthmian League opponents thanks to a late Jamie Crane goal.
But wouldn't it by nice to have the plucky Isthmian League challengers being encouraged with a hearty "go on" from the TV gantry every time they crossed the half-way line?
He now wears the gloves for Hertfordshire side Cheshunt FC in the Isthmian League Division One North and hopes to work his way up the divisions in five years.
The draw has not exactly set the pulses racing and as far as David v Goliath ties go it is really down to Hastings United of the Isthmian League's Premier Division attempt to knock Championship outfit Middlesbrough off their pedestal at the Riverside and former Football League club Mansfield Town will have to deal with the suspense of which Liverpool turn up at Field Mill - hoping it's the rubbishy one so they can claim a major scalp.
The Shots won the National Conference title last season to regain their Football League status after going bankrupt in 1992 and starting again, five levels down in the Isthmian League Division Three.
They progressed from the Isthmian League to the Conference in 1997 and six years later gained Football League status as Conference champions.