As a noun ellipse

is ellipse.

As an adjective semimajor is

(geometry) of or pertaining to the semimajor axis, the long axis of an ellipse.

As adjectives the difference between major and semimajor

is that major is of great significance or importance while semimajor is of or pertaining to the semimajor axis, the long axis of an ellipse.

As a noun major

is a military rank between captain and lieutenant colonel.

As a verb major

is to concentrate on a particular area of study as a student in a college or university.

As a proper noun Major

is {{surname}.

Semiminor is a related term of semimajor.

As adjectives the difference between semiminor and semimajor

is that semiminor is (mathematics) describing each of the two segments of the minor axis of a conic section at both sides of the center of the conic section while semimajor is (geometry) of or pertaining to the semimajor axis, the long axis of an ellipse.

As a verb hair

is to hate.

As a noun chevelure is

a hair-like envelope.

As nouns the difference between envelope and chevelure

is that envelope is a paper or cardboard wrapper used to enclose small, flat items, especially letters, for mailing while chevelure is a hair-like envelope.

As a verb envelope

is (nonstandard).

As a proper noun fold

is earth.

As a noun plica is

a fold or crease, especially of skin or other tissue.

As nouns the difference between crease and plica

is that crease is a line or mark made by folding or doubling any pliable substance; hence, a similar mark, however produced or crease can be while plica is a fold or crease, especially of skin or other tissue.

As a verb crease

is to make a crease in; to wrinkle.

As nouns the difference between skin and plica

is that skin is the outer protective layer of the body of any animal, including of a human while plica is a fold or crease, especially of skin or other tissue.

As a verb skin

is to injure the skin of.

As nouns the difference between disease and plica

is that disease is an abnormal condition of the body or mind that causes discomfort or dysfunction; distinct from injury insofar as the latter is usually instantaneously acquired while plica is a fold or crease, especially of skin or other tissue.

As a verb disease

is to cause unease; to annoy, irritate.

As a verb hair

is to hate.

As a noun plica is

a fold or crease, especially of skin or other tissue.