thorny

a thorny situation; thorny issues.

a thorny problem for our team to solve.

The young captain is pondering over a thorny problem.

This thorny problem on the environmental protection floored the new mayor.

The boys argued over the thorny points in the lesson.

The dog hurt one of its pad when it stepped upon a thorny path.

How to solve canalage of area of exclosure of week of coastal city harbor heavy traffic and jam the phenomenon already became one of thorny difficult problem.

A thorny evergreen shrub or small tree(Citrus medica)native to India and widely cultivated for its large,lemonlike fruits that have a thick,warty rind.

13(12) Plants usually thorny; twigs thornlike, bearing leaves and flowers, or twigs with needlelike thorns; leaf blade small, usually shorter than 7 cm.

The two classical crystals represented here are ammonium biurate (dark, thorny-apple type crystal), and triple phosphate (clear, coffin-like crystal).