24-hour interval 16 Associations

day twenty-four hours twenty-four hour period solar day mean solar day time unit (generic term) unit of time (generic term)

age 3 Associations

historic period era (generic term) epoch (generic term)

age 3 Associations

long time years time period (generic term) period of time (generic term) period (generic term)

age of fishes 13 Associations

Devonian Devonian period Age of Fishes period (generic term) geological period (generic term)

age of man 10 Associations

Quaternary Quaternary period Age of Man period (generic term) geological period (generic term)

air alert 9 Associations

time period (generic term) period of time (generic term) period (generic term)

alveolar resorption 19 Associations

periodontal disease (generic term) periodontitis (generic term)

annual 6 Associations

yearly time period period of time period (related term)

antiquity 9 Associations

historic period (generic term) age (generic term)

aperiodic 9 Associations

nonperiodic noncyclic (similar term) nonoscillatory (similar term) periodic (antonym)

beat 4 Associations

pulse pulsation heartbeat periodic event (generic term) recurrent event (generic term)

biannual 8 Associations

semiannual biyearly time period period of time period (related term)

biennial 8 Associations

biyearly time period period of time period (related term)

bimester 8 Associations

time period (generic term) period of time (generic term) period (generic term)

bimestrial 10 Associations

bimonthly time period period of time period (related term) time unit unit of time (related term)

bimillenary 11 Associations

bimillennium time period (generic term) period of time (generic term) period (generic term)

bimillenial 11 Associations

time period period of time period (related term)

bimillennium 12 Associations

bimillenary time period (generic term) period of time (generic term) period (generic term)

bimonthly 9 Associations

bimestrial time period period of time period (related term) time unit unit of time (related term)

biweekly 8 Associations

semiweekly time period period of time period (related term)