Found 1,923 definitions starting with OR:

order anacanthiniorder anaspidaorder andreaealesorder anguilliformes
order anopluraorder anostracaorder anseriformesorder anthocerotales
order anuraorder aphyllophoral…order aplacophoraorder apodes
order apodiformesorder apterygiformesorder aralesorder araneae
order araneidaorder aristolochial…order armsorder around
order artiodactylaorder aspergillalesorder auricularialesorder batoidei
order batrachiaorder belemnoideaorder bennettitalesorder berycomorphi
order blastocladial…order bookorder branchiuraorder bryales
order campanulalesorder caprimulgifor…order carnivoraorder caryophyllales
order casuariiformesorder casuarinalesorder caudataorder cestida
order cetaceaorder charadriiform…order charalesorder chelonethida
order cheloniaorder chiropteraorder chlorococcalesorder chytridiales
order ciconiiformesorder cilioflagella…order coccidiaorder code
order coleopteraorder collembolaorder columbiformesorder colymbiformes
order commelinalesorder coniferalesorder conodontaorder conodontophor…
order coraciiformesorder cordaitalesorder corrodentiaorder crocodilia
order crocodyliaorder cuculiformesorder cycadalesorder cycadofilical…
order cyclostomataorder cydippeaorder cydippidaorder cydippidea
order cypriniformesorder decapodaorder dermapteraorder dermoptera
order diapensialesorder dicranalesorder dictyopteraorder dinocerata
order dinoflagellataorder dinornithifor…order dipteraorder discocephali
order ebenalesorder edentataorder embiodeaorder embioptera
order endomycetalesorder entomophthora…order ephemeridaorder ephemeroptera
order equisetalesorder ericalesorder erysiphalesorder eubacteriales
order eubryalesorder euphausiaceaorder eurotialesorder eurypterida
order exocycloidaorder fagalesorder falconiformesorder filicales
order foraminiferaorder formorder fucalesorder fulfillment
order gadiformesorder galliformesorder ganoideiorder gaviiformes
order gentianalesorder geophilomorphaorder geranialesorder ginkgoales
order gnetalesorder graminalesorder gregarinidaorder gruiformes