Found 1,920 definitions starting with OR:

order haplosporidiaorder heliozoaorder helotialesorder hemiptera
order heterosomataorder heterotrichal…order hymenogastral…order hymenoptera
order hypericalesorder hypermastiginaorder hypocrealesorder hyracoidea
order ichthyosauriaorder ictodosauriaorder in councilorder insectivora
order insessoresorder isoetalesorder isopodaorder isoptera
order isospondyliorder juglandalesorder jungermannial…order lagomorpha
order laminarialesorder lechanoralesorder lepidodendral…order lepidoptera
order lichenalesorder lilialesorder lobataorder loricata
order lycoperdalesorder lycopodialesorder lyginopterida…order madreporaria
order mallophagaorder malvalesorder mantophasmato…order mapper
order marattialesorder marchantialesorder marsupialiaorder mecoptera
order monilialesorder monotremataorder mucoralesorder musales
order myaceaeorder mycelia steri…order mycoplasmatal…order mycrosporidia
order myricalesorder myrtalesorder mysidaceaorder myxobacterales
order myxobacteriaorder myxobacterial…order myxosporidiaorder naiadales
order neuropteraorder nidularialesorder notostracaorder nudibranchia
order numberorder octopodaorder odonataorder oedogoniales
order of australiaorder of battleorder of businessorder of friars min…
order of knighthoodorder of magnitudeorder of merit of t…order of monte verg…
order of operationsorder of our lady o…order of paymentorder of precedence
order of saint bene…order of successionorder of the dayorder of the medjid…
order of the purple…order olealesorder ophioglossalesorder opiliones
order opuntialesorder orchidalesorder ornithischiaorder orthoptera
order ostariophysiorder ostracodermiorder outorder palmales
order pandanalesorder papaveralesorder paperorder parietales
order passeriformesorder pectinibranch…order pediculatiorder pedipalpi
order pelecaniformesorder pelycosauriaorder perciformesorder percomorphi
order perissodactylaorder peronosporalesorder pezizalesorder phalangida
order phallalesorder phasmatodeaorder phasmidaorder pholidota
order picariaeorder piciformesorder pickingorder piperales