| -onym |
name; word. |
| onyx |
a kind of banded multi-colored quartz, used as a semiprecious stone. [2 definitions] |
| oo- |
ovum; egg. |
| oocyte |
a cell in the earliest stage of transformation into a female egg; immature egg. |
| oodles |
(informal; sometimes used with a sing. verb) a great quantity. |
| oogenesis |
the process whereby female egg cells are produced. |
| oogonium |
a reproductive cell in some algae and fungi. [2 definitions] |
| ooh |
used to express pleasure, happy surprise, or amazement. [3 definitions] |
| oolite |
a variety of limestone made up of small spherical grains. [2 definitions] |
| oology |
the scientific study of birds' eggs. |
| oolong |
a dark tea of China and Taiwan that is partly fermented before it is dried. |
| oophorectomy |
a surgical operation involving the removal of one or both ovaries; ovariotomy. |
| oophoritis |
inflammation of one or both ovaries; ovaritis. |
| oops |
a mild expression of dismay, sudden embarrassment, or unpleasant surprise, esp. at one's own mistake; whoops. |
| ootheca |
an egg case, as of certain insects or mollusks. |
| ooze1 |
to seep out gradually and slowly, as liquid, gas, or sound may do. [7 definitions] |
| ooze2 |
any particularly soft mud, or an area, such as a marsh, that is soft and muddy. [2 definitions] |
| ooze leather |
calfskin, sheepskin, or goatskin leather, having a velvety finish. |
| oozy1 |
giving off, or wet with, moisture. |
| oozy2 |
of, like, or having soft mud. |
| op- |
against. [2 definitions] |