macro-, macr-

The larger organisms of the benthos, exceeding one mm in length.

1. Tending to prolong life; relating to the prolongation of life.
2. The science of prolonging life.

1. The population of organisms of a size larger than a few centimeters in any habitat or ecosystem (especially applied to soil).
2. Large soil organisms, exceeding about 40-50 mm in length.
3. All soil organisms of larger size than those of the mesobiota including plant roots, larger insects, earthworms, etc.

1. Having a long life span; long lived.
2. Describing a dietary program advocating the restrictive use of certain foods; such as, one rich in whole grain cereals; maintained by proponents as a diet promoting good health, but regarded by many nutrionists as deficient in essential proteins.

1. The study of the prolongation or extension of life; long-lived.
2. The theory or practice of promoting well-being and longevity, principally by means of a diet consisting chiefly of whole grains and beans.

An abnormally large eyelid.

1. A condition of having abnormally thick or long arms.
2. An abnormal size or length of an arm or arms.

A strong downdraft, of over 2.5 miles in diameter, that can cause damaging winds.

A downdraft, or downburst, is a column of sinking air that is capable of producing damaging straight-line winds of over 150 mph (240 km/h), similar to, but distinguishable from tornadoes.

Downburst damage will radiate from a central point as the descending column spreads out when impacting the surface, whereas tornado damage tends towards convergent damage consistent with rotating winds.

A person who has an unusually or exceptionally large head and brain.

An individual with an abnormally large head.