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infra-
infra dig
infraclass
infracostal
infract
infraction
infrahuman
infrangible
infraorder
infrared
infrared astronomy
infrared photography
infrared spectroscopy
infrasonic
infrasound
infrastructure
infrequent
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infraorder
in·fra·or·der [ ínfrə àwrdər ] (plural in·fra·or·ders)


noun 
Definition:
 
subcategory of biological order: a category in the scientific classification of related organisms, comprising one or more families within an order

in·fra·or·di·nal [ ìnfrə áwrd'nəl ] adjective
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