1) Highlands mood 2) Prescription direction 3) Rx instruction 4) Three times a day, on an rx 5) Three times a day, to an MD 6) Thrice daily, on an rx Found on https://www.crosswordclues.com/clue/tid
Tid adjective [ Confer Anglo-Saxon tedre , tydere , weak, tender.] Tender; soft; nice; -- now only used in tid bit. Found on http://www.encyclo.co.uk/webster/T/55