differentiation; differential; derivative
medicine; pharmaceuticals; efficacious chemical (gunpowder, pesticide, etc.); (pottery) glaze; (illegal) drug; narcotic
administration (of medicine); giving medication
relation of cause and effect; causal relationship; causal link; causality
easy; likely to ...; have a tendency to ...; easy to ...
control (of a machine, device, etc.); control (over an opponent, one's emotions, etc.); governing; management
being done for; giving up; being in a hopeless situation; not knowing what to do; being brought to one's knees; (lit.) throwing up (one's) hands
time axis; time basis; timeline
to run along; to run beside; to follow (a policy, plan, etc.); to act in accordance with; to meet (wishes, expectations, etc.); to satisfy
input; (data) entry; typing
(distant) future; future existence; world beyond the grave; future (tense)
foresight; foreknowledge; divination
degree (of something); greatness or smallness (of something); quantity; number; amount; size
to affect; to impact; to influence
irregular; unsystematic; unsteady; disorderly
that's a different matter; that's a different story
disease; illness; disorder; condition; ailment
drug treatment; drug therapy; pharmacotherapy; medication
appearance; emergence; advent; arrival; showing up; coming to existence
one by one; each; every; at intervals of
together; mutually; reciprocally; adds a nuance of solemnity or formality
plot (of a novel, play, etc.); plotting (data)
judging from appearances; to all appearances; from the looks of it; on the face of it; apparently; seemingly
to come out; to appear; to turn up; to go out for a while
solution (of an equation, inequality, etc.); root (e.g. of a polynomial); solution (to a given problem); answer; explanation; interpretation
conclusion; resolution; gathering and bundling; convergence; focusing (of light); convergence
complicated and mysterious
God only knows; it's anyone's call; heaven knows
behavior; behaviour; conduct; entertainment; treat; feast
beyond human understanding
hypothesis; supposition; assumption; expectation; anticipation
first meeting; first interview with
abruptly; suddenly; all of a sudden; without warning
hit it off with (a person); find a kindred spirit in (a person); sympathy; mutual understanding
being at sea; losing one's bearings; (arch.) disorientation upon waking at night; (arch.) forgetting which house or room to enter
to be added to; to be appended; to join in (e.g. a group of friends); to participate; to increase (e.g. heat); to gain in (e.g. influence)