nodo

In the orbit of a solar-system body, the point where the body crosses the ecliptic from south to north: for a star, out of the plane of the sky toward the observer.

nodo componente

Software; Operating systems

A node in the Application Flow panel of a SketchFlow prototype that represents a screen.

patógeno

Biology; Ecology

A microorganism that makes its host sick. Certain viruses, bacteria, and authoritarian flag-waving fanatics are common examples of pathogens. They tend to be parasites that weaken ...

proteína

Biology; Ecology

Extremely complex molecules of carbon, hydrogen, nitrogen, and other elements joined in chains of amino acids (peptides). Protein constitutes the bulk of living matter, gives it ...

eucariota

Biology; Ecology

An organism with a membraned cell nucleus. See Prokaryote.

organogénesis

Biology; Ecology

The start of organ formation in the embryo.

porosidad

Biology; Ecology

The amount of space within rocks or soils.

selva

Biology; Ecology

An evergreen forest growing in a wt, humid climate. Rainforest coverage prevents desertification and drought and hosts more than half the world's animal species. Every day ...