The universal emergence of atomic hydrogen first occurred during the recombination epoch. At standard temperature and pressure, hydrogen is a colorless, odorless, tasteless, non-toxic, nonmetallic, highly combustible diatomic gas with the molecular formula H 2.
LINK / CITE ADD TO WORD LIST. verb. An eye with a dilated pupil. An eye with a dilated pupil. To dilate is defined as to expand and become wider. An example of dilate is when your eyes become wide with excitement.INK / CITE ADD TO WORD LIST. verb. An eye with a dilated pupil. An eye with a dilated pupil. To dilate is defined as to expand and become wider. An example of dilate is when your eyes become wide with excitement.
Dilation. The word dilation, in terms of human physiology, means to 'relax, open, or widen.' This is usually used in structures where materials are allowed to pass. Dilation is an autonomic process, which means you cannot consciously control it.atch short & fun videos Start Your Free Trial Today. Instructor: John Williams. Dilation is a key factor in regulating body processes. In this lesson, you will learn the definition of dilation, the purpose of it, and examples of its use in the body.