As nouns the difference between apothecium and thecium

is that apothecium is the ascigerous fructification of lichens, forming masses of various shapes while thecium is the hymenium.

Thecia is a related term of thecium.

As nouns the difference between thecia and thecium

is that thecia is while thecium is (mycology|dated) the hymenium.

As nouns the difference between plunderer and piller

is that plunderer is one who plunders or pillages while piller is a plunderer or thief.

As nouns the difference between thief and piller

is that thief is one who has carried out a theft while piller is (label) a plunderer or thief.

As a noun peninsula

is (label) (a piece of land projecting into water).

As a proper noun kamchatka is

a long peninsula in the russian far east, lying between the pacific ocean and the sea of okhotsk.

As proper nouns the difference between russia and kamchatka

is that russia is russia while kamchatka is a long peninsula in the russian far east, lying between the pacific ocean and the sea of okhotsk.

As adjectives the difference between imaginable and supposable

is that imaginable is able to be imagined; conceivable while supposable is capable of being supposed; imaginable.

As nouns the difference between polyp and hydranth

is that polyp is polyp while hydranth is (zoology) an individual polyp of a hydroid colony.

As nouns the difference between hydroid and hydranth

is that hydroid is any of many colonial coelenterates that exist mainly as a polyp; a hydrozoan while hydranth is (zoology) an individual polyp of a hydroid colony.

As an adjective hydroid

is of or pertaining to such creatures.

Hydrozoan is a related term of hydranth.

As nouns the difference between hydrozoan and hydranth

is that hydrozoan is (biology) any of many colonial coelenterates, of the class hydrozoa , including the hydras, hydroids, hydrocorals, and siphonophores while hydranth is (zoology) an individual polyp of a hydroid colony.