yearlong adjective 2adverb 2 adjective2 •Lasting one year; of a timespan of one year.Both are congruent with a yearlong periodicity, which is apparently neutralized in the main settlement. — 1976 •Which lasts throughout every year; which is not seasonalYearlong manning is needed, although at a somewhat reduced level from the peak periods in the fall. — 1957 adverb2 •Per year.The estimate of the number of sheep and cattle now using this range is equivalent to 250000 cattle units yearlong — 1939 •Throughout every year; not seasonallyOver much of the Great Plains, water was not available yearlong for units of land as small as the customary ownership units — 1979
