Pullback vs Fullback - What's the difference?

As nouns the difference between pullback and fullback

is that pullback is the act or result of pulling back; a withdrawal while fullback is an offensive back whose primary jobs are to block in advance of the halfback on running plays and for the quarterback on passing plays.

pullback

English

(wikipedia pullback)

Noun

(en noun)

The act or result of pulling back; a withdrawal.

(film) The act of drawing a camera back to broaden the visible scene.

That which holds back, or causes to recede; a drawback; a hindrance.

(architecture) The iron hook fixed to a casement to pull it shut, or to hold it partly open at a fixed point.

(finance) A reduction in the price of a financial instrument after reaching a peak

(category theory) Given a pair of morphisms

f:X\rightarrow Z

and

g: Y\rightarrow Z

with a common codomain, Z'', their pullback is a pair of morphisms $p_1:P\rightarrow X$ and $p_2:P\rightarrow Y$ as well as their common domain, ''P'', such that the equation $f\circ p_1 = g\circ p_2$ is satisfied, and for which there is the ''universal property'' that for any other object ''Q for which there are also morphisms

q_1: Q\rightarrow X

q_2: Q\rightarrow Y

; there is a unique morphism

u: Q\rightarrow P

such that

p_1\circ u = q_1

and

p_2 \circ u = q_2

Antonyms

* (category theory) pushout (Webster 1913)

fullback

English

Noun

(en noun)

(American football) An offensive back whose primary jobs are to block in advance of the halfback on running plays and for the quarterback on passing plays.

(field hockey) A defensive player who assists the goalie in preventing the opposing team from scoring.