- A disease, especially an intermittent fever, which returns
every third day, reckoning inclusively, or in which the intermission
lasts one day. - A liquid measure formerly used for wine, equal to seventy
imperial, or eighty-four wine, gallons, being one third of a tun.
Meaning of 'tertian' (Princeton's WordNet)
1 . tertian
[ a]
Meaning (1): - of or relating to a tonal system based on major thirds
Example in sentence:
a tertian tonal system
Meaning (2): - relating to symptoms (especially malarial fever) that appear every other day