instillment

from WordNet (r) 3.0 (2006)

instillment
    n 1: the introduction of a liquid (by pouring or injection) drop
         by drop [syn: {instillation}, {instillment}, {instilment}]

from The Collaborative International Dictionary of English v.0.48

Instillment \In*still"ment\, n.
   The act of instilling; also, that which is instilled.
   [Written also {instilment}.]
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

28 Moby Thesaurus words for "instillment":
      absorption and regurgitation, brainwashing, catechization,
      conditioning, decoction, dictation, imbuement, implantation,
      impregnation, impression, inculcation, indoctrination,
      infiltration, infixation, infixion, infusion, inoculation,
      instillation, interpenetration, marination, penetration,
      permeation, pervasion, reindoctrination, saturation, soaking,
      steeping, suffusion