English ⇄ English French +

English thesaurus
Planetary Defense Systems
mil., abbr.	PDS
Planetary Defense System
abbr., astronaut., mil.	PDF; PDS (Air Force 2025 concept)

Planetary : 127 phrases in 20 subjects

Astronomy	12
Chemistry	7
Communications	1
Construction	2
Cultural studies	1
Earth sciences	1
Electronics	3
Environment	3
Gear train	6
General	4
Industry	1
Information technology	3
Life sciences	6
Mechanic engineering	54
Metallurgy	2
Natural sciences	7
Social science	1
Technology	5
Transport	5
Work flow	3