- lax [laks]adj.[ME < L laxus < IE base * (s)lēg-, loose, lax > SLACK1]1.a) loose; emptying easily: said of the bowelsb) having lax bowels2. slack; of a loose texture; not rigid or tight3. not strict or exact; careless [lax morals]4. Bot. loose; open: said of a flower cluster5. Phonet. articulated with the jaw and tongue muscles relatively relaxed: said of certain vowels, as (e) and (i): opposed to TENSE1n.a lax vowelSYN.- REMISSlaxlyadv.laxnessn.
English World dictionary. V. Neufeldt. 2014.