1.  repulsion(n = noun.phenomenon) repulsive force - the force by which bodies repel one another;
is a kind of force
Antonym: attraction

2.  repulsion(n = noun.feeling) horror, repugnance, revulsion - intense aversion;
is a kind of disgust

3.  repulsion(n = noun.act) standoff - the act of repulsing or repelling an attack; a successful defensive stand;
is a kind of stand
Derived forms verb repulse₁, verb repulse₃

1.  The act of repulsing or repelling, or the state of being repulsed or repelled. [1913 Webster]

2.  A feeling of violent offence or disgust; repugnance. [1913 Webster]

3.  The power, either inherent or due to some physical action, by which bodies, or the particles of bodies, are made to recede from each other, or to resist each other's nearer approach; as, molecular repulsion; electrical repulsion. [1913 Webster]

repulsion, n.
1 aversion; disgust.
2 esp. Physics the force by which bodies tend to repel each other or increase their mutual distance (opp. ATTRACTION).

Etymology:
LL repulsio (as REPEL)

N  repulsion, driving from, repulse, abduction, magnetic repulsion, magnetic levitation, antigravity, repelling, repellent, repulsive, abducent, abductive, centripetal, like charges repel, opposite charges attract, like poles repel, opposite poles attract.