tripod
["spider web, spider's web", 'hand-held computer, hand-held microcomputer', 'chain mail, ring mail, mail, chain armor, chain armour, ring armor, ring armour', 'nematode, nematode worm, roundworm', 'drumstick', 'ballpoint, ballpoint pen, ballpen, Biro', 'submarine, pigboat, sub, U-boat']