What does GI stand for?

Air Guinee - ICAO designator (AD)

Galleries Index (SAUS)

Galvanized Iron

Gas Injection (SAUS)

Gas Instructor (SAUS)

Gas Insufflation (MELL)

Gastroenterology (DAVI)

Gastrointestinal - Medicine

Gelatin Infusion - Medium - Biochemistry (DAVI)

Gelatin Infusion Medium - Medicine (BABM)

Gelation Index - Lubricants

Gelbray International (EA)

Gemeinschaft der Ikonenfreunde - Society of Friends of Icons - SFI (EAIO)

Gender Identity (DIPS)

Genealogical Institute (EA)

General Index

General Indication (SAUS)

General Indulgence (ROG)

General Infantry - Soldier - Army (DAVI)

General Information (IAA)

General Input - Computer science (IAA)

General Inspection - Military (AABC)

General Instrument (SAUS)

General Instrument Corporation (SAUS)

General Instruments

General Issue

Generic Identifier - Telecommunications (TEL)

Generic Issue (ODA)

Genesis Information (EA)

Genesis Institute - An association (EA)

Genetics Institute, Inc.

Genito-Intestinal - Medicine (EDAA)

Genomic Imprinting (MELL)

Genral Instrument Corp. (SAUS)

Geodesic Isotensoid (IEEE)

Geodetic Institute (SAUS)

Geodic Isotensoid (SAUS)

Geographical Indication

Geographically Impossible (ADA)

Geographic Information (SAUO)

Geological Institute (SAUO)

Geometric Intelligence

Geon International Corp. (EFIS)

Geophysical Institute - University of Alaska, Fairbanks - Research center

Gerson Institute (EA)

Gesellschaft fur Informatik - Society for Computer Science

Giant Industries - NYSE symbol (SPSG)

Giant Interneurons - Neurology

Gibraltar - ANSI two-letter standard code (CNC)

Gibraltar - Federal Information Processing Standard (FIPS) country code (GEON)

Gideons International (EA)

Giessen - German license plate city code

Gigantic - Telegraphy (PCTE)

Gilgai - Soil biology - Soil phases (QSUL)

Gill

Gimbel Brothers (SAUS)

Gingival Index - Dentistry

Girls, Inc. (EA)

Glasgow Institute (SAUS)

Glaucoma (SAUS)

Glazed Interior - Title (DICI)

Glider Infantry (SAUS)

Global Indexing System (SAUO)

Global Indicator (TVEL)

Global Intelligence (SAUS)

Globigerina (SAUS)

Globin Insulin

Globulin Insulin (SAUS)

Globus (SAUS)

Glomerular Index - Medicine (AAMN)

Glomus intraradices - A fungus

Glovebox Investigations (SAUS)

Glucose Intolerance (MELL)

Glucose Isomerase (EDCT)

Glycemic Index

Glykeeminen indeksi - Glycemic Index

Goethe Institute (EA)

Gold Inlay (MELL)

Gold Institute - Also known as L'Institut de l'Or (EA)

Governmental and Industrial (SAUS)

Government and Industrial (IEEE)

Government Initiated (IEEE)

Government Issue - Army

Government of India

Graded Index - Optics

Grain Iron (SAUS)

Grand Island - Diocesan abbreviation - Nebraska (TOCD)

Granuloma Inguinale - Endocrinology (DAVI)

Grassroots International (EA)

Gravida I - Gynecology and obstetrics (DAVI)

Gray Iron (MSA)

Gray's Inn - London - One of the Inns of Court

Great Indulgence

Green Island - Plant pathology

Greenpeace International (EA)

Grid Interval (IAA)

Grolier Interactive (IID)

Gross Impression - Television ratings (NTCM)

Gross Income

Gross Inventory (MHDB)

Gross Investment

Ground Insulation (ELAL)

Ground Interception (IAA)

Group Identification (SAUO)

Group Indicate (SAUO)

Group Insurance

Group Item (SAUO)

Growth and Income - Business term

Growth Index

Growth Inhibiting

Growth Inhibitor (SAUS)

Guardian Independent - A publication

Guest Investigator

Guidance Inventory - Psychology

Guided Imagery - Psychology

Guinea - NCIC country-territory code (NCIC)

Gunner Instructor - Navy - British

Gym Itch (MELL)

Gyro International (EA)

Royal Glasgow Institute of Fine Arts - Scotland

Soldier - Slang, probably from Government Issue

Gilbert - A unit of magnetomotive force

Giles (SAUS)

Guido de Suzaria - Deceased, 1293 - Authority cited in pre-1607 legal work (DSA)

generation interval (SAUS)

Gibraltar - MARC country of publication code - Library of Congress (LCCP)

Gill (NTIO)