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.
Puffers vary in size  the smaller species only growing to 3 inches and the largest reaching over 2 feet in length. Puffers are generally hardy and do best in large tanks with lots of swimming space and some rocky decor dÃ©cor for. shelteruffers are comical looking fish, especially when they are puffed up and look like a ball with fins. By rapidly swallowing water or air, they are able to expand their bodies up to 2 times their normal size in order to deter predators.