tegument

The fruit, which somewhat resembles a pear, has a rough tegument covered with minute prickles, which instantly enter the hand which touches them, however slightly, and are very difficult to extract. 

Sunlight streams through the big picture window, though it’s cold, down to zero overnight, and the lake is sealed beneath a hard uneven tegument of ice so thick you could drive a truck across it.

The ripe pseudospores are enveloped in a thick tegument, of a dark brown colour.

Certainly Nature, foreseeing the cruel usage which this useful servant to man should receive at man's hand, did prudently in furnishing him with a tegument impervious to ordinary stripes.

They are developed as tubercles or folds in the tegument, and are homologous with the legs.