As a proper noun winter

is (a common germanic one).

As a noun isocheim is

a geoisotherm of equal mean winter temperature.

As nouns the difference between geoisotherm and isothere

is that geoisotherm is (geology) a line or surface joining points within the earth that have the same temperature while isothere is a geoisotherm of equal mean summer temperature.

As a proper noun summer

is of modern usage, for a girl born in summer.

As a noun isothere is

a geoisotherm of equal mean summer temperature.

As nouns the difference between sail and gennaker

is that sail is salt while gennaker is (nautical) a sail having characteristics of a genoa and a spinnaker.

In nautical|lang=en terms the difference between genoa and gennaker

is that genoa is (nautical) a staysail that resembles a jib but extends aft beyond the mast while gennaker is (nautical) a sail having characteristics of a genoa and a spinnaker.

As nouns the difference between genoa and gennaker

is that genoa is (nautical) a staysail that resembles a jib but extends aft beyond the mast while gennaker is (nautical) a sail having characteristics of a genoa and a spinnaker.

In nautical|lang=en terms the difference between spinnaker and gennaker

is that spinnaker is (nautical) a supplemental sail to the main sail, especially a triangular one, used on yachts for running before the wind while gennaker is (nautical) a sail having characteristics of a genoa and a spinnaker.

As nouns the difference between spinnaker and gennaker

is that spinnaker is (nautical) a supplemental sail to the main sail, especially a triangular one, used on yachts for running before the wind while gennaker is (nautical) a sail having characteristics of a genoa and a spinnaker.

As a noun geodynamics

is the branch of geophysics that studies the deformation processes of planetary mantle and crust, and the resulting earthquakes and volcanism.

As an adjective geodynamical is

of or pertaining to geodynamics.

As an adjective uncultured

is not cultured or civilized; lacking in delicacy or refinement.

As a noun unculturedness is

the state or condition of being uncultured.

Boorishness is a synonym of unculturedness.

As nouns the difference between boorishness and unculturedness

is that boorishness is the state or characteristic of being a boor or of being boorish; boorish behaviour while unculturedness is the state or condition of being uncultured.

As adjectives the difference between homotopic and homotopical

is that homotopic is (topology|of two maps) such that there is an interval of maps joining one to the other while homotopical is (mathematics) homotopic.