The halogens all form binary compounds with hydrogen, and these compounds are known as the hydrogen halides: hydrogen fluoride (HF), hydrogen chloride (HCl), hydrogen bromide (HBr), hydrogen iodide (HI), and hydrogen astatide (HAt).
finger stick. 1  the act of puncturing the tip of the finger to obtain a small sample of capillary blood. In some procedures the hand may be first immersed in warm water for 10 minutes to arterialize the capillary blood or give it characteristics similar to those of arterial blood.
1 Little Finger-Also known as the baby finger or pinky, the little finger is the smallest of all the fingers. 2  Its anatomical name is the 5th finger, digitus quintus or digitus V, while hand analysts call it the 4th finger or the Mercury finger. 3  An example of a finger is your pinkie finger.