glaciation

As a letter s

is the letter s with a.

As a noun glaciation is

act of freezing.

As nouns the difference between glaciation and null

is that glaciation is act of freezing while null is zero, nil; the cardinal number before einn.

As nouns the difference between glaciation and deglaciation

is that glaciation is act of freezing while deglaciation is (climatology|paleontology) the removal of all glacial land ice from a region, usually by melting.

As nouns the difference between glaciation and gladiation

is that glaciation is act of freezing while gladiation is combat between gladiators.

As nouns the difference between taxonomy and glaciation

is that taxonomy is the science or the technique used to make a classification while glaciation is act of freezing.

As nouns the difference between glaciation and neoglaciation

is that glaciation is act of freezing while neoglaciation is relatively recent glaciation, especially in the holocene period.

As a noun glaciation

is act of freezing.

As an adjective postglacial is

occurring after glaciation.

As a noun glaciation

is act of freezing.

As an adjective neoglacial is

describing any of several relatively recent periods (during the Holocene) of increased glaciation.