3 harsh and threatening in manner or appearance the fierce faces of the players on the opposing hockey team Synonyms austere, dour, grim, flinty, forbidding, gruff, intimidating, lowering (also louring), rough, rugged, severe, stark, steely, stern, ungentleRelated Words bleak, cold, hostile, inhospitable, inimical, unfriendly, unsympathetic; adamant ...
Puffer fish from all other sources potentially contain deadly toxins and therefore are not considered safe. The liver, gonads (ovaries and testes), intestines, and skin of some puffer fish contain the toxins tetrodotoxin and/or saxitoxin.
Puffer machine, used to detect explosives; Puffer train, a class of patterns in automata such as Conway's Game of Life; Pufferfish, a type of fish in family Tetraodontidae which can inflate itself as a defence mechanism; Supercharger for a motor car engine; USS Puffer, two submarine vessels of the United States Navy