Search Result for "hypotonic": 
Wordnet 3.0

ADJECTIVE (2)

1. (of living tissue) lacking normal tone or tension;

2. (of a solution) having a lower osmotic pressure than a comparison solution; 



WordNet (r) 3.0 (2006):

hypotonic
    adj 1: (of living tissue) lacking normal tone or tension [ant:
           hypertonic]
    2: (of a solution) having a lower osmotic pressure than a
       comparison solution [ant: hypertonic, isosmotic,
       isotonic]