| OC | (dentistry) the normal spatial relation of the teeth when the jaws are closed |
|---|---|
| OC | (meteorology) a composite front when colder air surrounds a mass of warm air and forces it aloft |
| OC | closure or blockage (as of a blood vessel) |
| OC | a consonant produced by stopping air at some point and suddenly releasing it |
| OC | tending to occlude |
| OC | supernatural forces and events and beings collectively |
| OC | hide from view |
| OC | become concealed or hidden from view or have its light extinguished |
| OC | cause an eclipse of (a celestial body) by intervention |
| OC | having an import not apparent to the senses nor obvious to the intelligence |
| OC | hidden and difficult to see |
| OC | one celestial body obscures another |