What does GCA stand for?

Gaffney, Cline and Associates, Inc. - Commercial firm

Gain Control Amplifier

Gain Control Driver (SAUS)

Gallocyanin-Chrome Alum (SAUS)

Garden Centers of America (EA)

Garden Centre Association (BUAC)

Garden Centres of Australia

Garden Club of America (EA)

Garden Club of Australia

Gasket Cutters' Association (BUAC)

Gastric Cancer Area - Medicine (DMAA)

Gauge Control Analyzer

GCA Corp. (SAUO)

Gearbox Controller Automatic (SAUS)

Genealogy Club of America - Defunct (EA)

General Claim Agent

General Combining Ability

General Communications Architecture (SAUS)

General Control Approach

General Council Audit (SAUO)

Geneva Convention Act (SAUO)

Geophysics Corp. of America

Geophysics Corporation of America (SAUO)

Giant Cell Arteritis - Medicine

Girls Clubs of America - Later, GI (EA)

Glass Crafts of America - Defunct (EA)

Glazing Contractors Association (SAUO)

Glen Canyon - Arizona - Seismograph station code, US Geological Survey (SEIS)

Global Citizens Association - Quebec, PQ (EAIO)

Global Coalition for Africa (SAUO)

Gloucester Boat Building Co., Gloucester, MA - Manufacturer code for watercraft hull identification number (USCG)

Glycosphingolipid Sorbent Assay (SAUS)

Gold Clause Agreement - Shipping (DS)

Golf Course Association (EA)

Government Contract Advisor - CD-ROM - Published by Clark Boardman (AAGC)

Government Contract Awards (SAUS)

Government Contract Committee (SAUO)

Grains Council of Australia

Grand Central Association (SAUO)

Graphic Communications Association (EA)

Great China Airlines - Taiwan - ICAO designator (FAAC)

Green Coffee Association (SAUO)

Green Coffee Association of New Orleans (SAUO)

Green Coffee Association of New York City (EA)

Greeting Card Association (EA)

Greyhound Club of America (EA)

Ground Communication Activities (SAUS)

Ground Communication Activity (IAA)

Ground Control Approach (SAUS)

Ground Control Center (SAUO)

Ground-Controlled Aircraft (AFM)

Ground-Controlled Apparatus - RADAR

Ground-Controlled Approach - for lateral and vertical guidance of landing aircraft through use of ground RADAR and radio communications

Grounded Cathode Amplifier

Group Capacity Analysis - or Assessment

Group Capacity Assessment (SAUO)

Groupe Canadien d' Apherese - Association - Canada (EAIO)

Guacamayas - Colombia - Airport symbol (OAG)

Guanine Cytosine Adenine - A triplet of bases coding for the amino acid, alanine (EES)

Guatemala (SAUS)

Guidance and Control Assembly (NG)

Guidance Control and Adapter Section (MCD)

Guidance Coupler Assembly (SAUO)

Gulf Coast Aluminium Corp. (SAUO)

Gulf General Atomic (SAUO)

Gun Control Act - 1968

Gun Control Australia

Gunite Contractors Association (EA)

Gyro Control Assembly

WHO Global Commission on AIDS (SAUO)