[ 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.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019