As nouns the difference between orbital and interorbital

is that orbital is orbital while interorbital is (zoology) any of the scales between the orbits.

As an adjective interorbital is

between orbitals.

As nouns the difference between orbit and interorbital

is that orbit is orbit (path of one object around another object) while interorbital is (zoology) any of the scales between the orbits.

As an adjective interorbital is

between orbitals.

As nouns the difference between scale and interorbital

is that scale is (obsolete) a ladder; a series of steps; a means of ascending or scale can be part of an overlapping arrangement of many small, flat and hard pieces of keratin covering the skin of an animal, particularly a fish or reptile or scale can be a device to measure mass or weight while interorbital is (zoology) any of the scales between the orbits.

As a verb scale

is to change the size of something whilst maintaining proportion; especially to change a process in order to produce much larger amounts of the final product or scale can be to remove the scales of.

As an adjective interorbital is

between orbitals.

As a noun pillar

is (architecture) a large post, often used as supporting architecture.

As a verb pillar

is to provide with pillars or added strength as if from pillars.

As an adjective interpillar is

between pillars.

In lang=en terms the difference between hum and hummable

is that hum is an imposition or hoax; humbug while hummable is suitable for humming or humming along.

As a noun hum

is a hummed tune, i.e. created orally with lips closed.

As a verb hum

is to make a sound from the vocal chords without pronouncing any real words, with one's lips closed.

As an interjection hum

is hmm; an inarticulate sound uttered in a pause of speech implying doubt and deliberation.

As an adjective hummable is

suitable for humming or humming along.

Hummably is a derived term of hummable.

As an adverb hummably

is in a hummable way.

As an adjective hummable is

(music) suitable for humming or humming along.

Hummability is a derived term of hummable.

As an adjective hummable is

(music) suitable for humming or humming along.

Singable is a related term of hummable.

As adjectives the difference between singable and hummable

is that singable is capable of being sung while hummable is (music) suitable for humming or humming along.

Tailplane is a coordinate term of foreplane.

As nouns the difference between foreplane and tailplane

is that foreplane is a relatively flat surface located well forward of a vehicle's center of gravity used for stability and, when movable, used for steering and attitude control; common on submarines, also used on surface ships and aircraft while tailplane is a horizontal airfoil, at the rear of an aircraft, to which the elevator is attached; usually associated with the tailfin.

Tailplane is a coordinate term of mainplane.

As nouns the difference between mainplane and tailplane

is that mainplane is the wing of an airplane that provides most of the lift while tailplane is a horizontal airfoil, at the rear of an aircraft, to which the elevator is attached; usually associated with the tailfin.