As a noun curtation is

(astronomy) the interval of a planets orbit in which its curtate or shortened distance is less than the true distance.

As proper nouns the difference between iran and zagros

is that iran is iran while zagros is a mountain range in iran.

As adjectives the difference between lyric and astrophic

is that lyric is (poetry) of, or relating to a type of poetry (such as a sonnet or ode) that expresses subjective thoughts and feelings, often in a songlike style while astrophic is describing lyric poetry that is not written in stanza form.

As a noun lyric

is a lyric poem.

As a noun poetry

is (rare|or|archaic).

As an adjective astrophic is

describing lyric poetry that is not written in stanza form.

As nouns the difference between propellant and bipropellant

is that propellant is anything that propels while bipropellant is a propellant composed of two components (typically a fuel and an oxidizer) that react together in the combustion chamber.

As an adjective propellant

is .

As nouns the difference between component and bipropellant

is that component is a smaller, self-contained part of a larger entity. Often refers to a manufactured object that is part of a larger device while bipropellant is a propellant composed of two components (typically a fuel and an oxidizer) that react together in the combustion chamber.

As an adjective component

is making up a larger whole; as a component word.

As nouns the difference between fuel and bipropellant

is that fuel is substance consumed to provide energy through combustion, or through chemical or nuclear reaction while bipropellant is a propellant composed of two components (typically a fuel and an oxidizer) that react together in the combustion chamber.

As a verb fuel

is to provide with fuel.

As nouns the difference between oxidizer and bipropellant

is that oxidizer is (chemistry) an oxidizing agent, especially one used to oxidize the fuel of a rocket or a fuel cell while bipropellant is a propellant composed of two components (typically a fuel and an oxidizer) that react together in the combustion chamber.

As adjectives the difference between protected and knaveproof

is that protected is defended while knaveproof is for a system or body: protected, or designed to be proof against misuse or error; fail-safe.

As a verb protected

is (protect).

As adjectives the difference between designed and knaveproof

is that designed is created according to a design while knaveproof is for a system or body: protected, or designed to be proof against misuse or error; fail-safe.

As a verb designed

is (design).