Причастие прошедшего времени
Rare, creative/descriptive verb (“to reach or grasp like a tentacle”).
Определения
To reach, grasp, or move in a sinuous or exploratory manner like a tentacle. Vines tentacled across the old stone wall.
Attributive use of the noun (e.g., “tentacle monster”).
Определения
Relating to, resembling, or involving tentacles. The movie features terrifying tentacle creatures.