a-, an- +

Sterility in the female.

Without offspring; non-reproductive; vegetative.

1. Literally, “not cutable”, not divisible.
2. Originally, any of the indivisible particles postulated by philosophers as the basic component of all matter.
3. A tiny particle of anything; jot.

1. Lack of physiological tone especially of a contractile organ.
2. Lack of normal muscular tension or tonus.

1. The inability to locate a sensation properly; sensory inattention.
2. The inability to locate a sensation of touch or feeling.

Not toxic; not caused by or associated with a toxin (poison).

1. Not inflicting or causing damage or injury.
2. Especially designed or planned to minimize injurious effects; for example, the doctor used an atraumatic sutures during the surgery.

The absence of hair either congenital or acquired.

The wasting away of tissues, organs, or the entire body.

1. A wasting away, especially of body tissue, an organ, etc., or the failure of an organ or part to grow or develop, as a result of insufficient nutrition.
2. In pathology, a wasting away of the body or of an organ or part, as from defective nutrition or nerve damage.
3. The degeneration, decline, or decrease, because of disuse: "He argued that there was a progressive atrophy of freedom and independence of thought."
4. A wasting of tissues, organs, or the entire body, as from death and reabsorption of cells, diminished cellular proliferation, decreased cellular volume, pressure, ischemia, malnutrition, lessened function, or hormonal changes.

Not typical, not characteristic; abnormal.

1. Not associated with or supplied by blood vessels.
2. Without blood or lymphatic vessels.

Not virulent.

1. Not contaminated by or associated with any foreign organisms, used in reference to pure cultures of microorganisms or to germ-free animals.
2. A reference to a pure culture free from contaminant organisms.
3. Free from contamination.

Insomnia, sleeplessness.