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1. Occurring every two months; bimonthly.
2. Lasting two months.

[From Latin bimēstris : bi-, two; see bi-1 + mēnsis, month; see mē- in Indo-European roots.]


1. lasting for two months
2. a less common word for bimonthly1
[C19: from Latin bimēstris, from bi-1 + mēnsis month]
biˈmestrially adv


(baɪˈmɛs tri əl)

1. occurring every two months; bimonthly.
2. lasting two months.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.bimestrial - occurring every two months; "bimonthly visits"
periodic, periodical - happening or recurring at regular intervals; "the periodic appearance of the seventeen-year locust"
2.bimestrial - two months long; lasting two months
long - primarily temporal sense; being or indicating a relatively great or greater than average duration or passage of time or a duration as specified; "a long life"; "a long boring speech"; "a long time"; "a long friendship"; "a long game"; "long ago"; "an hour long"
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I determined spider size and orb web investment during monthly or bimestrial censuses at each site.