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～ a method of birth control in which coitus is initiated but the penis is deliberately withdrawn before ejaculation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
once again
— Adverb
– English
～ anew; "she tried again"; "they rehearsed the scene again"
once more
— Adverb
– English
～ anew; "she tried again"; "they rehearsed the scene again"
once
— Adverb
– English
～ at a previous time; "at one time he loved her"; "her erstwhile writing"; "she was a dancer once"
once
— Adverb
– English
～ on one occasion; "once I ran into her"
once
— Adverb
– English
～ as soon as; "once we are home, we can rest"
once and for all
— Adverb
– English
～ in a conclusive way; "we settled the problem conclusively"
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
oncologic
— Adjective
– English
～ of or relating to or practicing oncology; "oncological nurse"
oncological
— Adjective
– English
～ of or relating to or practicing oncology; "oncological nurse"
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"
oncoming
— Adjective
– English
～ moving toward one
Oncorhynchus kisutch
— Noun
– English
～ small salmon of northern Pacific coasts and the Great Lakes