Constituting or being area of the essence of something; built-in.
Basic or essential; necessary: crucial components. See Synonyms at vital.
Medicine Of, associated with, or being a dysfunctional problem or an ailment whose cause is not known: crucial hypertension.
Biochemistry Being a substance that is required for regular performance but cannot be synthesized because of the human anatomy and so needs to be contained in the diet: crucial proteins.
Very important; of high significance.
becoming in fundamental type; showing its essence.
Such that each complementary area is irreducible, the boundary of each complementary area is incompressible by disks and monogons inside complementary region, no leaf is a sphere or a torus bounding a good torus into the manifold.
of the essence, or what makes an object, or course of items, what its.
Hence, really existing; existent.
Important in the greatest level; essential to the attainment of an object; indispensably needed.
Containing the essence or characteristic part of a substance, since a plant; very rectified; pure; therefore, unmixed.
required; indispensable; -- stated of the shades which constitute a chord, in distinction from ornamental or passing tones.
Idiopathic; independent of other conditions.
becoming or regarding or containing the essence of a plant an such like
of the greatest relevance
standard and fundamental
absolutely necessary; extremely needed
defining rights and duties rather than giving the guidelines by which legal rights and duties are established