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OnceOnce a fraud
Once a mortgage always a mortgage
Once a recompense always a recompense
once again
Once and again
once and for all
once in a blue moon
once in a while
once more
once-over
onchocerciasis
Onchorynchus
Onchorynchus kisutch
Onchorynchus nerka
Onchorynchus tshawtscha
-- Oncidium --
Oncidium papilio
Oncidium papilio kramerianum
oncogene
Oncograph
oncologic
oncological
oncologist
oncology
Oncometer
oncoming
Oncost
oncotomy
Oncovin
ONCXDR
Ondaatje
Ondatra
Oncidium
On`cid´i`um
| n. | 1. | (Bot.) A genus of tropical orchidaceous plants, the flower of one species of which (Oncidium Papilio) resembles a butterfly. |
| Noun | 1. |  oncidium - any orchid of the genus Oncidium: characterized by slender branching sprays of small yellow and brown flowers; often grown as houseplants |