The story
From the resemblance to a thermos vacuum flask.
Etymology from Wiktionary, CC BY-SA 4.0.
thermos bomb
Today it means: An AR-4 air-dropped anti-personnel mine used by the Italian Air Force during World War II. Full definition →
Today it means: An AR-4 air-dropped anti-personnel mine used by the Italian Air Force during World War II. Full definition →
From the resemblance to a thermos vacuum flask.
Etymology from Wiktionary, CC BY-SA 4.0.