As a verb spilled

is (chiefly|us) (spill).

As an adjective unspilled is

not spilled.

As adjectives the difference between lustful and codding

is that lustful is full of lust; driven by lust while codding is (obsolete) lustful.

As a verb codding is

.

As nouns the difference between polycyclic and benzopyrene

is that polycyclic is such a compound while benzopyrene is benzopyrene.

As an adjective polycyclic

is (chemistry) having two or more rings of atoms in the molecule.

As nouns the difference between aromatic and benzopyrene

is that aromatic is a fragrant plant or spice added to a dish to flavour it while benzopyrene is benzopyrene.

As an adjective aromatic

is fragrant or spicy.

As nouns the difference between hydrocarbon and benzopyrene

is that hydrocarbon is a compound consisting only of carbon and hydrogen atoms while benzopyrene is a polycyclic aromatic hydrocarbon (having five fused benzene rings) that is both mutagenic and carcinogenic.

As nouns the difference between anniversary and sexcentenary

is that anniversary is of a significant event, a day that is an exact number of years (to the day) since the event occurred often preceded by an ordinal number indicating the number of years that have elapsed since the event while sexcentenary is a six-hundredth anniversary.

As an adjective sexcentenary is

of or pertaining to the number six hundred, or to a six hundred year period.

As an adjective fetal

is .

As a noun amniocyte is

any fetal cell floating freely in the amniotic fluid.

As nouns the difference between cell and amniocyte

is that cell is a single-room dwelling for a hermit or cell can be (us|informal) a cellular phone while amniocyte is any fetal cell floating freely in the amniotic fluid.

As a verb cell

is to place or enclose in a cell.

As adjectives the difference between spilt and unspilt

is that spilt is that has been spilt while unspilt is not spilt.

As a verb spilt

is (chiefly|british) (spill).

Unspilt is a alternative form of unspilled.

As adjectives the difference between unspilled and unspilt

is that unspilled is not spilled while unspilt is not spilt.