As adjectives the difference between parasitic and leechlike
is that parasitic is pertaining to a biological or symbolic parasite while leechlike is resembling a leech or some aspect of one; clinging, parasitic.
As a noun parasitic
is (computing) component of a circuit that does not show up in a circuit's schematic but does show up in the circuit's behavior.
parasitic
English
Adjective
(-)
Pertaining to a biological or symbolic parasite.
Drawing upon another organism for sustenance.
Exploiting another for personal gain.
Noun
(
en noun)
(computing) Component of a circuit that does not show up in a circuit's schematic but does show up in the circuit's behavior.
leechlike
English
Adjective
(
en adjective)
Resembling a leech or some aspect of one; clinging, parasitic.