vie. vb, vies, vying or vied. 1. (intr; foll by with or for) to contend for superiority or victory (with) or strive in competition (for). 2. (tr) to offer, exchange, or display in rivalry. [C15: probably from Old French envier to challenge, from Latin invÄ«tÄre to invite].
On rare occasions, a halfback is asked to throw the ball when running a HB option. This play is generally referred to as a half-back pass, regardless if the player throwing the football is a tailback or fullback.
Hemoglobin (/ËhiËmÉËÉ¡loÊbáµ»n, ËhÉ-, -moÊ-/); also spelled haemoglobin and abbreviated Hb or Hgb, is the iron-containing oxygen-transport metalloprotein in the red blood cells of all vertebrates (with the exception of the fish family Channichthyidae) as well as the tissues of some invertebrates.