Dictionary

All Word
ounce Noun a unit of apothecary weight equal to 480 grains or one twelfth of a pound
orange bat Noun a common bat of northwestern Australia having orange or yellow fur
orange horseshoe bat Noun a common bat of northwestern Australia having orange or yellow fur
order mantophasmatodea Noun an order of insect identified in 2002 in a 45 million year old piece of amber from the Baltic region
oil beetle Noun any of various beetles that exude an oily substance from the leg joints that deters enemies
optic cup Noun (embryology) a two-walled cuplike depression that develops into the pigmented and sensory layers of the retina
oxtail Noun the skinned tail of cattle
orthopterous insect Noun any of various insects having leathery forewings and membranous hind wings and chewing mouthparts
orthopteron Noun any of various insects having leathery forewings and membranous hind wings and chewing mouthparts
orthopteran Noun any of various insects having leathery forewings and membranous hind wings and chewing mouthparts
oriental cockroach Noun dark brown cockroach originally from orient now nearly cosmopolitan in distribution
oriental roach Noun dark brown cockroach originally from orient now nearly cosmopolitan in distribution
orange tortrix Noun California moth whose larvae live in especially oranges
onion thrips Noun injurious to onion plants and sometimes tobacco
onion louse Noun injurious to onion plants and sometimes tobacco
odonate Noun large primitive predatory aquatic insect having two pairs of membranous wings
owlet moth Noun usually dull-colored medium-sized nocturnal moth
odd-toed ungulate Noun placental mammals having hooves with an odd number of toes on each foot
onager Noun Asiatic wild ass
onager Noun an engine that provided medieval artillery used during sieges
omasum Noun the third compartment of the stomach of a ruminant
ox Noun any of various wild bovines especially of the genera Bos or closely related Bibos
ox Noun an adult castrated bull of the genus Bos
oxen Noun domesticated bovine animals as a group regardless of sex or age
oryx Noun large African antelope with long straight nearly upright horns
otter Noun freshwater carnivorous mammal having webbed and clawed feet and dark brown fur
otter Noun the fur of an otter
okapi Noun similar to the giraffe but smaller with much shorter neck and stripe on the legs
orangutan Noun large long-armed ape of Borneo and Sumatra having arboreal habits
orang Noun large long-armed ape of Borneo and Sumatra having arboreal habits
orangutang Noun large long-armed ape of Borneo and Sumatra having arboreal habits
opah Noun large elliptical brightly colored deep-sea fish of Atlantic and Pacific and Mediterranean
oarfish Noun thin deep-water tropical fish 20 to 30 feet long having a red dorsal fin
oyster fish Noun a variety of toadfish
oyster-fish Noun a variety of toadfish
oysterfish Noun a variety of toadfish
ocean pout Noun common along northeastern coast of North America
ocean perch Noun large fish of northern Atlantic coasts of America and Europe
ocean perch Noun North Atlantic rockfish
oilfish Noun very large deep-water snake mackerel
oldwench Noun tropical Atlantic fish
ocean sunfish Noun among the largest bony fish
ordnance Noun large but transportable armament
ordnance Noun military supplies
outdoor stage Noun a platform where a (brass) band can play in the open air
opera glasses Noun an optical instrument designed for simultaneous use by both eyes
orthodontic braces Noun an appliance that corrects dental irregularities
omnibus Adjective providing for many things at once
omnibus Noun a vehicle carrying many passengers
omnibus Noun an anthology of articles on a related subject or an anthology of the works of a single author