| OLIBANUMS | • olibanums n. Plural of olibanum. • OLIBANUM n. an aromatic gum from a North African tree, formerly used in medicine but now chiefly as incense. |
| OLIGAEMIA | • oligaemia n. (Medicine) The condition of having a low quantity of blood. • oligæmia n. Obsolete form of oligaemia. • OLIGAEMIA n. abnormal deficiency of blood, also OLIGEMIA. |
| OLIGAEMIC | • oligaemic adj. Relating to or exhibiting oligaemia. • OLIGAEMIC adj. relating to oligaemia, abnormal deficiency of blood, also OLIGEMIC. |
| OLIGARCHS | • oligarchs n. Plural of oligarch. • OLIGARCH n. a ruler in a government by the few. |
| OLIGARCHY | • oligarchy n. A government run by only a few, often the wealthy. • oligarchy n. Those who make up an oligarchic government. • oligarchy n. A state ruled by such a government. |
| OLIGEMIAS | • OLIGEMIA n. loss of blood after haemorrhage, also OLIGAEMIA. |
| OLIGOCENE | • Oligocene adj. (Geology) Of a geologic epoch within the Paleogene period from about 34 to 23 million years ago; marked… • Oligocene prop.n. (Geology) The Oligocene epoch. • OLIGOCENE adj. belonging to a certain geological time period. |
| OLIGOGENE | • oligogene n. (Genetics) One of a few genes that, together, control a specific trait. • OLIGOGENE n. a type of gene. |
| OLIGOMERS | • oligomers n. Plural of oligomer. • OLIGOMER n. a type of complex chemical compound. |
| OLIGOPOLY | • oligopoly n. An economic condition in which a small number of sellers exert control over the market of a commodity. • OLIGOPOLY n. a market situation in which a few producers control the demand from a large number of buyers. |
| OLIGURIAS | • oligurias n. Plural of oliguria. • OLIGURIA n. scantiness of urine in proportion to liquid intake, also OLIGURESIS. |
| OLINGUITO | • olinguito n. Bassaricyon neblina, a raccoon-like procyonid native to the Andean forests of Colombia and Ecuador. • OLINGUITO n. (Spanish) a small animal related to the olingo, living in the forests of Colombia and Ecuador. |
| OLIPHANTS | • oliphants n. Plural of oliphant. • OLIPHANT n. (obsolete) an ancient ivory hunting-horn. |
| OLITORIES | • olitories n. Plural of olitory. • OLITORY n. (archaic) a potherb, a kitchen garden. |
| OLIVENITE | • olivenite n. (Mineralogy) An orthorhombic copper arsenate mineral with the chemical formula Cu2AsO4OH. • OLIVENITE n. an olive-green hydrous arseniate of copper. |
| OLIVEWOOD | • olivewood n. The wood of the olive tree. • olivewood n. Any of several ornamental trees of the genus Cassine. • OLIVEWOOD n. the wood of the olive tree. |