The Collaborative International Dictionary of English v.0.48:

Stasis \Sta"sis\ (st[=a]"s[i^]s or st[a^]s"[i^]s), n. [NL., fr.
   Gr. sta`sis a standing still.] (Physiol.)
   A slackening or arrest of the blood current in the vessels,
   due not to a lessening of the heart's beat, but presumably to
   some abnormal resistance of the capillary walls. It is one of
   the phenomena observed in the capillaries in inflammation.
   [1913 Webster]

WordNet (r) 3.0 (2006):

stasis
    n 1: an abnormal state in which the normal flow of a liquid
         (such as blood) is slowed or stopped
    2: inactivity resulting from a static balance between opposing
       forces

Moby Thesaurus II by Grady Ward, 1.0:

92 Moby Thesaurus words for "stasis":
   a wise passiveness, abeyance, abidingness, apathy, catalepsy,
   catatonia, changelessness, constancy, contemplation,
   contemplative life, deadliness, deathliness, do-nothing policy,
   do-nothingism, do-nothingness, dormancy, durability, durableness,
   duration, endurance, entropy, equilibrium, equipoise, firmness,
   fixedness, frozenness, hardening, idleness, immobility,
   immovability, immovableness, immutability, inaction, inactivity,
   indifference, indolence, inertia, inertness, invariability,
   invariableness, inveteracy, laissez-aller, laissez-faire,
   laissez-faireism, languor, lastingness, latency, long standing,
   lotus-eating, meditation, neutralism, neutrality, neutralness,
   noninvolvement, nonparticipation, nonresistance, nonviolence,
   nonviolent resistance, pacifism, paralysis, passive resistance,
   passive self-annihilation, passiveness, passivism, passivity,
   permanence, permanency, perpetualness, persistence, persistency,
   poise, policy, procrastination, quiescence, quietism, rigidity,
   solidity, stability, stagnancy, stagnation, standing, standpattism,
   steadfastness, suspense, torpor, unchangeability, unchangingness,
   vegetation, vis inertiae, vita contemplativa, waiting game,
   watching and waiting