seasonal

• POS: Adjective
• HYPHEN: sea=son=al
• COUNT in NET: 1 in 1 verses (in OT : 1 in 1 verses)

CIDE DICTIONARY

seasonal, a. 

•  Of or pertaining to the seasons.  [1913 Webster]
•  Occurring or being used in a specific season; as, seasonal items for sale.  [1913 Webster]

Seasonal dimorphism (Zoöl.), the condition of having two distinct varieties which appear at different seasons, as certain species of butterflies in which the spring brood differs from the summer or autumnal brood.

OXFORD DICTIONARY

seasonal, adj. of, depending on, or varying with the season.

Idiom

seasonal affective disorder a depressive state associated with late autumn and winter and thought to be caused by a lack of light.

Derivative

seasonality n. seasonally adv.

THESAURUS

seasonal

aestival, alternate, arctic, autumn, autumnal, beating, boreal, brumal, canicular, circling, cyclic, epochal, equinoctial, even, every other, hibernal, hiemal, intermittent, isochronal, measured, metronomic, midsummer, midwinter, oscillatory, out of season, periodical, pulsing, reciprocal, recurrent, recurring, rhythmic, rotary, serial, solstitial, spring, springlike, steady, summer, summerlike, summerly, summery, undulant, undulatory, vernal, wavelike, wheeling, winter, winterlike, wintery, wintry