| osculate |
to be tangent; touch. [2 definitions] |
| osculum |
any of the small openings of a sponge through which water is expelled. |
| -ose1 |
having the characteristics of; resembling or abounding in. |
| -ose2 |
a carbohydrate, esp. a sugar. |
| OSHA |
acronym of "Occupational Safety and Health Administration." |
| osier |
any of several willows with long, flexible twigs used in basketry and wickerwork, or the twig of such a plant. |
| Osiris |
the ancient Egyptian god of the lower world and judge of the dead whose annual resurrection was believed to personify nature's yearly renewal. |
| -osis |
condition, action, or process. [3 definitions] |
| -osity |
(such) a state, condition, or quality (used to form nouns from adjectives ending in -ose or -ous). |
| Oslo |
the capital of Norway. |
| osmics |
(used with a sing. verb) the science or study of smells and the sense of smells. |
| osmium |
a chemical element that has seventy-six protons in each nucleus and that occurs as an octavalent ion or in pure form as an extremely hard, dense, brittle bluish metal solid used as a catalyst and esp. in alloys and in electron microscopy because of its extremely high density. (symbol: Os) |
| osmose |
to undergo or subject to osmosis. [2 definitions] |
| osmosis |
the passage or diffusion of a liquid through a semipermeable membrane until the concentration is the same on both sides of the membrane, or the tendency of a liquid to diffuse in such a way. [2 definitions] |
| osmotic pressure |
the pressure created by a solvent in passing through a semipermeable membrane. (See osmosis.) |
| osprey |
a large, fish-catching hawk with a dark back and white underside; fish hawk. |
| ossa |
pl. of os1. |
| osseous |
of the substance of, containing, or similar to bone; bony. |
| Ossian |
in Gaelic legend, a hero and poet of the third century. |
| ossicle |
a small bone, esp. one of the three in the tympanic cavity of the ear. |
| ossify |
to make into or like bone. [4 definitions] |