• synonyms


[ ahy-suh-pik-nik ]
/ ˌaɪ səˈpɪk nɪk /


Also i·so·pyc·nal [ahy-suh-pik-nl] /ˌaɪ səˈpɪk nl/. having the same density.


a line drawn on a map connecting all points having the same density, as of water or air.

Nearby words

isoproterenol, isopter, isopteran, isopterous, isopycnal, isopycnic, isopyre, isorhythm, isorhythmic, isorrhea, isosbestic point

Origin of isopycnic

1885–90; iso- + pycnic, variant of pyknic Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for isopycnal


isopycnic (-ˈpɪknɪk)

/ (ˌaɪsəʊˈpɪknəl) /


a line on a map connecting points of equal atmospheric density

Word Origin for isopycnal

C19: from iso- + Greek puknos thick
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012