As nouns the difference between gasket and sealant

is that gasket is any mechanical seal that serves to fill the space between two objects, generally to prevent leakage between the two objects while under compression while sealant is any material used to seal a surface so as to prevent passage of a fluid.

As nouns the difference between rosemary and rosewater

is that rosemary is a shrub that originates from Europe and Asia Minor and produces a fragrant herb used in cooking and perfumes while rosewater is a liquid produced by steeping rose petals in water, used as a coloring agent and flavoring ingredient in certain foods.

As a proper noun Rosemary

is {{given name|female|from=Latin}}.

As nouns the difference between layers and boilers

is that layers is while boilers is .

As a verb layers

is (layer).

As a noun crisis

is a crucial or decisive point or situation; a turning point.

As a proper noun apocalypse is

(countable|biblical) the written account of a revelation of hidden things given by god to a chosen prophet.

As nouns the difference between apocolypse and crisis

is that apocolypse is while crisis is a crucial or decisive point or situation; a turning point.

As nouns the difference between skyscrapers and apartment

is that skyscrapers is plural of skyscraper while apartment is a complete domicile occupying only part of a building.

As nouns the difference between substantiation and rationale

is that substantiation is the act of substantiating while rationale is an explanation of the basis or fundamental reasons for something.

As a noun bursae

is .

As an adjective synovial is

of, pertaining to, or producing synovia.

As an adjective zonal

is divided into zones.

As a verb zones is

.

As adjectives the difference between implausible and preposterous

is that implausible is not plausible; unlikely; dubious while preposterous is absurd, or contrary to common sense.