Closed Lake With Internal Drainage
This page is the CodyCross answer for the clue below from Physics, Group 1899, Puzzle 5 (Spectral Lines).
Question is: Closed Lake With Internal Drainage
and the answer is: ENDORHEIC
Word Meaning:
ENDORHEIC — (hydrology) Of a basin or lake: having no outflow to an external body of water such as a river or ocean, and only losing water through evaporation or seepage into the ground.
Definitions from Wiktionary.