orrery

orrery (n)

1. A clockwork model of the solar system.

oniochalasia

oniochalasia (n)

1. The purchasing of objects as a form of mental relaxation

onomatopoeia

onomatopoeia (n)

1. The property of a word of sounding like what it represents.

2. A word which has the property of onomatopoeia, such as "moo" or "hiss".

orthogonal

orthogonal (adj)

1. (geometry) Pertaining to right angles; perpendicular (to).

(mathematics)

2. Of two functions, linearly independent; having a zero inner product.

3. Of a square matrix that is the inverse of its transpose.

4. Of a linear transformation that preserves angles.

5. (statistics) Statistically independent, with reference to variates.

6. (software engineering) Able to be treated separately.

omnific

omnific (adj)

1. Capable of making or doing anything; all-creating.