omphalus
— Noun
– English
～ a scar where the umbilical cord was attached; "you were not supposed to show your navel on television"; "they argued whether or not Adam had a navel"; "she had a tattoo just above her bellybutton"
omsk
— Noun
– English
～ a city in the Asian part of Russia
on-line database
— Noun
– English
～ (computer science) a database that can be accessed by computers
on-license
— Noun
– English
～ a license to sell liquor for consumption on the premises
onager
— Noun
– English
～ an engine that provided medieval artillery used during sieges; a heavy war engine for hurling large stones and other missiles
Onagraceae
— Noun
– English
～ a large and widely distributed family of plants of the order Myrtales
onanism
— Noun
– English
～ manual stimulation of the genital organs (of yourself or another) for sexual pleasure
onanism
— Noun
– English
～ a method of birth control in which coitus is initiated but the penis is deliberately withdrawn before ejaculation
onanist
— Noun
– English
～ a person who practices masturbation
onchocerciasis
— Noun
– English
～ infestation with slender threadlike roundworms (filaria) deposited under the skin by the bite of black fleas; when the eyes are involved it can result in blindness; common in Africa and tropical America
oncidium
— Noun
– English
～ any orchid of the genus Oncidium: characterized by slender branching sprays of small yellow and brown flowers; often grown as houseplants
oncogene
— Noun
– English
～ a gene that disposes normal cells to change into cancerous tumor cells
oncologist
— Noun
– English
～ a specialist in oncology
oncology
— Noun
– English
～ the branch of medicine concerned with the study and treatment of tumors
oncoming
— Noun
– English
～ the beginning or early stages; "the onset of pneumonia"
Oncorhynchus kisutch
— Noun
– English
～ small salmon of northern Pacific coasts and the Great Lakes
Oncorhynchus keta
— Noun
– English
～ a large Pacific salmon with small spots on its back; an important food fish
oncorhynchus
— Noun
– English
～ Pacific salmon including sockeye salmon; chinook salmon; chum salmon; coho salmon
Oncorhynchus nerka
— Noun
– English
～ small salmon with red flesh; found in rivers and tributaries of the northern Pacific and valued as food; adults die after spawning