Deorsumduction is a derived term of duction.

As a noun duction is

(obsolete) guidance.

Duction is a derived term of excycloduction.

Excycloduction is likely misspelled.

Excycloduction has no English definition.

As a noun duction is

guidance.

Tenerife is a alternative form of teneriffe.

Teneriffe is often a misspelling of tenerife.

Teneriffe has no English definition.

As a proper noun Tenerife is

the largest of the seven Canary Islands.

As a verb dumbfound

is to confuse and bewilder; to leave speechless.

As a noun dumbfounder is

someone who or that which dumbfounds.

Splenomegaly is a derived term of hepatosplenomegaly.

As nouns the difference between hepatosplenomegaly and splenomegaly

is that hepatosplenomegaly is enlargement of both the liver and spleen while splenomegaly is an enlargement of the spleen.

As a proper noun river

is .

As a noun bottomland is

flat land along a river, lying few feet above normal high water, often consisting of alluvial deposits and naturally fertile.

As nouns the difference between alluvial and bottomland

is that alluvial is a deposition of sediment over a long period of time by a river; an alluvial layer while bottomland is flat land along a river, lying few feet above normal high water, often consisting of alluvial deposits and naturally fertile.

As an adjective alluvial

is pertaining to the soil deposited by a stream.

As nouns the difference between deposits and bottomland

is that deposits is while bottomland is flat land along a river, lying few feet above normal high water, often consisting of alluvial deposits and naturally fertile.

As a verb deposits

is (deposit).

As an adjective fertile

is (of land etc) capable of growing abundant crops; productive.

As a noun bottomland is

flat land along a river, lying few feet above normal high water, often consisting of alluvial deposits and naturally fertile.

As nouns the difference between floodplain and bottomland

is that floodplain is an alluvial plain that may or may not experience occasional or periodic flooding while bottomland is flat land along a river, lying few feet above normal high water, often consisting of alluvial deposits and naturally fertile.