canker

• اسم يشير إلى مرض فطري مدمر يصيب الأشجار والنباتات، وإلى قرحة أو تقرح في الفم أو الشفتين، وإلى تأثير ضار ومنتشر يصعب استئصاله.

A noun referring to a destructive fungal disease affecting woody plants, an ulceration of the mouth or lips, or a pervasive and harmful influence that is difficult to eradicate.

1. Plant diseaseC1formalscientific

   A fungal infection affecting woody plants, resulting in localized damage to the bark and underlying tissues.

   سرطان النبات

   • The apple tree was infected with canker, causing the bark to crack and peel.
   • Gardeners must prune away branches affected by canker to prevent its spread.
   • The disease canker can weaken a tree significantly over time.

2. Mouth ulcerB2formalmedical

   A painful sore or ulceration that appears on the lips or inside the mouth.

   قُرْحَة الفَم

   • She developed a canker on her lip after biting it accidentally.
   • Canker sores can make eating and speaking uncomfortable.
   • The dentist prescribed a gel to treat the canker in his mouth.

   المرادفاتaphthous ulcercanker sore

3. Harmful influenceC2formal

   A destructive or corrupting influence that is difficult to eliminate and spreads gradually.

   تأثير ضار

   • Corruption is a canker that eats away at the foundations of society.
   • The spread of misinformation is a canker on public discourse.
   • They saw the new policy as a canker that would undermine the organization's values.

   المرادفاتblightcancercontagioncorruptioncurseevilmalignancypestilenceplaguescourge

• فعل يُستخدم بمعنى يُفسِد أو يُلوِّث أو يُصيب بالتعفُّن والتآكل، أو أن يَفسُد الشيء ويتآكل كأنه أصابته قُرحة أو صَدَأ. ومن معانيه المجازية إفساد الأخلاق أو نشر الفساد.

An obsolete verb meaning to infect or corrupt, or to become infected or corrupted, like a canker sore or rust.

1. Become infected with a cankerC1formalmedical

   To develop a destructive, ulcerous sore or infection, typically in plant or animal tissue.

   تَقَرَّحَ

   • The tree began to canker after the harsh winter.
   • If left untreated, the wound may canker and spread.
   • The rose bush started to canker due to the fungal infection.

   المرادفاتfestersuppurateulcerate

2. Infect with a cankerC1formalmedical

   To cause an infection characterized by ulcerous sores or decay.

   أصاب بالقُرْحَة

   • The disease can canker the leaves of the plant.
   • Poor hygiene can canker the gums over time.
   • The parasite can canker the flesh of the host.

   المرادفاتblightcorrodedecayfesterinfectulcerate