gauss.noun,.plural.gauss or gausses
Physics – the centimeter/gram/second unit of magnetic induction, equal to one maxwell per square centimeter

Gaussian.adjective
being or having the shape of a Gaussian curve or a Gaussian distribution 
Gaussian curve.noun
normal curve 
Gaussian distribution.noun
normal distribution

geometry.noun,.plural.geometries
Mathematics.-.the mathematics of the properties, measurement, and relationships of points, lines, angles, surfaces, and solids; a system of geometry.(Euclidean geometry); a geometry restricted to a class of problems or objects (solid geometry - the branch of mathematics that deals with three-dimensional figures and surfaces); a book on geometry; configuration; arrangement; a surface shape; a physical arrangement suggesting geometric forms or lines
geometrician.or.geometer.nouns
geometric.also.geometrical.adjective
Mathematics.-.of or relating to geometry and its methods and principles; increasing or decreasing in a geometric progression; using simple geometric forms such as circles and squares in design and decoration
geometrically.adverb

gossamer.noun
fine, thin, flimsy, silky substance of webs made by small spiders, which floats in calm air and spreads over grass, etc.

gradient.noun
the rate of ascent or descent in a road, etc.; degree of slope

gainsay, gainsaid, gainsaying, gainsays.transitive verbs
to declare false; deny; to oppose, especially by contradiction implies.disputing the truth of what another has said (no one can gainsay her claims); contravene
gainsayer.noun

generatrix.noun,.plural.generatrices
mathematics.(a geometric.element that generates a geometric figure, especially a straight line that generates a surface by moving in a specified fashion; also called generator

gram.noun
a metric unit of mass equal to one thousandth (10^–3) of a kilogram (a kilogram is equal to 2.25 pounds)

glean, gleaned, gleaning, gleans.transitive-and.intransitive verbs
transitive verb use.to collect bit by bit; to gather (grain) left behind by reapers
intransitive verb use.to gather grain left behind by reapers
gleaner.noun

genealogy.noun,.plural.genealogies
a record or table of the descent of a person, family, or group from an ancestor or ancestors; a family tree; direct descent from an ancestor; lineage or pedigree; the study or investigation of ancestry and family histories
genealogically.adverb
genealogist.noun

genre.noun
a type or class (emaciated famine victims . . . on television focused a new genre of attention on the continent); a category of artistic composition, as in music or literature, marked by a distinctive style, form, or content: (his six String Quartets . . . the most important works in the genre since Beethoven's)(Time); a realistic style of painting that depicts scenes from everyday life

g's
a unit of acceleration equal to the acceleration caused by gravity at the Earth's surface, about 9.8 meters (32 feet) per second

gusto.noun,.plural.gustoes
vigorous enjoyment; zest

genocide.noun
the systematic and planned extermination of an entire group (national, spiritual, racial, political, ethnic); mass killing, or enslaving, of people for profit, politics and/or ideology - infamous examples Josef Stalin, Adolf Hitler, Mussolini
genocidal.adjective
genocidally.adverb

galaxy.noun,.plural.galaxies
any of numerous large scale aggregates of stars, gas, and dust that constitute the universe, containing an average of 100 billion (10¹¹) solar masses and ranging in diameter from 1,500 to 300,000 light years; also called nebula

garb.noun
a distinctive style or form of clothing; dress; an outward appearance; a guise.(presented their radical ideas in the garb of moderation for sop to the masses)
garb, garbed, garbing, garbs.transitive verbs
to cover with or as if with clothing; dress

gradual.adjective
advancing or progressing by regular or continuous degrees.(gradual erosion); a gradual slope
gradually.adverb
gradualness.noun

generic.adjective
relating to or descriptive of an entire group or class; general
generic.noun
a product, such as a detergent, that is sold without a brand name or trademark; a wine that is a blend of several grape varieties and does not carry the name of any specific grape
generically.adverb

gist.noun
the central idea; the essence; substance

grant, granted, granting, grants.transitive verbs
to consent to the fulfilment of (grant a request); to accord as a favor, prerogative, or privilege; to bestow; confer; to concede; acknowledge
grant.noun
the act of granting; something granted; a giving of funds for a specific purpose
grantable.adjective
granter.noun

grateful.adjective
appreciative of benefits received; thankful; expressing gratitude; affording pleasure or comfort; agreeable; pleasing
gratefully.adverb
gratefulness.noun

gratitude.noun
the state of being grateful; thankfulness

gaze, gazed, gazing, gazes.intransitive verbs
to look steadily with fixed attention
gaze.noun
a steady, fixed look
gazer.noun

glisten, glistened, glistening, glistens.intransitive verbs
to shine by reflection with a sparkling luster; flash
glisten.noun
a sparkling, lustrous shine

gleam.noun
a brief beam or flash of light (saw gleams of daylight through the cracks); a steady but subdued shining; a glow (the gleam of burnished gold); a brief or dim indication (a gleam of hope the rains will let up); a trace.(a gleam of intelligence)
gleam, gleamed, gleaming, gleams.verbs
intransitive verb use.to emit a gleam; flash or glow
transitive verb use.to cause to emit a flash of light
gleamer.noun