Cr
The symbol for the element chromium.
CR 1
abbr.
conditioned response
crown-rump length
CR 2
n.
A bipolar lead of an electrocardiograph that has electrodes attached to the chest and right arm.
Cr The symbol for chromium. |
chromium (krō'mē-əm) Symbol Cr A hard, shiny, steel-gray metallic element that is rust-resistant and does not tarnish easily. It is used to plate other metals, to harden steel, and to make stainless steel and other alloys. Atomic number 24; atomic weight 51.996; melting point 1,890°C; boiling point 2,482°C; specific gravity 7.18; valence 2, 3, 6. See Periodic Table. |
networking
The country code for Costa Rica.
(1999-01-27)