Science Abbreviations

Essential science abbreviations for competitive exams - organized alphabetically with colorful sections

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Exam Tip

Memorize at least 3-5 important abbreviations from each letter for better recall in exams. Use the color coding to associate letters with specific topics.

Science Abbreviations A-Z

A

AC
Alternating Current
ADP
Adenosine Diphosphate
AIDS
Acquired Immune Deficiency Syndrome
AMU
Atomic Mass Unit
ATP
Adenosine Triphosphate

B

BCG
Bacillus Calmette-Guérin (Tuberculosis vaccine)
BOD
Biochemical Oxygen Demand
BP
Blood Pressure / Boiling Point
BMR
Basal Metabolic Rate
BSE
Bovine Spongiform Encephalopathy

C

CAT
Computerized Axial Tomography
CD
Compact Disc
CNG
Compressed Natural Gas
CPU
Central Processing Unit
CRT
Cathode Ray Tube

D

DC
Direct Current
DDT
Dichloro Diphenyl Trichloroethane (insecticide)
DNA
Deoxyribonucleic Acid
DTP
Diphtheria, Tetanus, Pertussis (vaccine)
DVT
Deep Vein Thrombosis

E

ECG
Electrocardiogram
EEG
Electroencephalogram
EMF
Electromotive Force
ENT
Ear, Nose, and Throat
ESR
Erythrocyte Sedimentation Rate

F

FAD
Flavin Adenine Dinucleotide
FM
Frequency Modulation
FTP
File Transfer Protocol
FRS
Fellow of the Royal Society
FPS
Frames Per Second

G

GDP
Gross Domestic Product
GPS
Global Positioning System
GSM
Global System for Mobile Communications
GMO
Genetically Modified Organism
GABA
Gamma-Aminobutyric Acid

H

HIV
Human Immunodeficiency Virus
HTML
HyperText Markup Language
HTTP
HyperText Transfer Protocol
HCL
Hydrochloric Acid
H2O
Water (chemical formula)

I

IC
Integrated Circuit
ICU
Intensive Care Unit
IGMP
Internet Group Management Protocol
IR
Infrared Radiation
ISP
Internet Service Provider

J

JFET
Junction Gate Field-Effect Transistor
JPEG
Joint Photographic Experts Group
JVM
Java Virtual Machine
JPG
Joint Photographic Group (image format)
JAX-RS
Java API for RESTful Web Services

K

K
Potassium (chemical symbol)
KB
Kilobyte
KHz
Kilohertz
KVA
Kilovolt-Ampere
KW
Kilowatt

L

LASER
Light Amplification by Stimulated Emission of Radiation
LCD
Liquid Crystal Display
LED
Light Emitting Diode
LPG
Liquefied Petroleum Gas
LSD
Lysergic Acid Diethylamide

M

MB
Megabyte
MCB
Miniature Circuit Breaker
MHC
Major Histocompatibility Complex
MRI
Magnetic Resonance Imaging
MSH
Melanocyte Stimulating Hormone

N

NAD
Nicotinamide Adenine Dinucleotide
NASA
National Aeronautics and Space Administration
NGO
Non-Governmental Organization
NMR
Nuclear Magnetic Resonance
NTP
Normal Temperature and Pressure

O

OCT
Optical Coherence Tomography
ODBC
Open Database Connectivity
OOP
Object-Oriented Programming
OR
Operating Room
OS
Operating System

P

PAN
Personal Area Network
PC
Personal Computer
PET
Positron Emission Tomography
pH
Potential of Hydrogen
PVC
Polyvinyl Chloride

Q

QAM
Quadrature Amplitude Modulation
QC
Quality Control / Quantum Computing
QED
Quantum Electrodynamics
QFT
Quantum Field Theory
QTL
Quantitative Trait Locus

R

RAM
Random Access Memory
RBC
Red Blood Cell
RDA
Recommended Dietary Allowance
RF
Radio Frequency
RNA
Ribonucleic Acid

S

SARS
Severe Acute Respiratory Syndrome
SCID
Severe Combined Immunodeficiency
SDLC
Software Development Life Cycle
SI
International System of Units
SMTP
Simple Mail Transfer Protocol

T

TB
Tuberculosis
TCP
Transmission Control Protocol
TFT
Thin Film Transistor
TNT
Trinitrotoluene
TSH
Thyroid Stimulating Hormone

U

UDP
User Datagram Protocol
UHF
Ultra High Frequency
UL
Underwriters Laboratories
URL
Uniform Resource Locator
UV
Ultraviolet

V

VCR
Video Cassette Recorder
VHF
Very High Frequency
VLSI
Very Large Scale Integration
VPN
Virtual Private Network
VR
Virtual Reality

W

WAN
Wide Area Network
WBC
White Blood Cell
WHO
World Health Organization
Wi-Fi
Wireless Fidelity
WWW
World Wide Web

X

Xe
Xenon (chemical symbol)
XML
Extensible Markup Language
XOR
Exclusive OR (logic gate)
XRD
X-Ray Diffraction
XSS
Cross-Site Scripting

Y

YAG
Yttrium Aluminum Garnet
Yb
Ytterbium (chemical symbol)
Y2K
Year 2000 Problem
YAC
Yeast Artificial Chromosome
YAGNI
You Aren't Gonna Need It (programming principle)

Z

ZIFT
Zygote Intrafallopian Transfer
ZIP
Zone Improvement Plan (file format)
ZFS
Zettabyte File System
ZIF
Zero Insertion Force (socket)
ZIP
Zinc, Iron, Protein (nutrition)
Note: This is a demonstration with sample data for letters A-H. A complete implementation would include all letters of the alphabet with comprehensive science abbreviations.