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.
Definition of PHTHALATE. : any of various salts or esters of phthalic acid used especially as plasticizers and in solvents.ADVERTISEMENT. noun phthalÂ·ate \Ëthal-ËÄt\. : a salt or ester of phthalic acid.efinition of PHTHALATE. : any of various salts or esters of phthalic acid used especially as plasticizers and in solvents. ADVERTISEMENT. noun phthalÂ·ate \Ëthal-ËÄt\.