adv. Once in two months. [ 1913 Webster ]
a. [ Pref. bi- + monthly. ] Occurring, done, or coming, once in two months;
n. That which is a month old, or which lives for a month. [ R. ] Wordsworth. [ 1913 Webster ]
a.
Monthly nurse,
n.;
adv.
pos>a. Coming or made twice in a month;