agglutinate

verb

• firmly stick or be stuck together to form a mass: (as adjective agglutinated)rhinoceros horns are agglutinated masses of hair
• Biology (with reference to bacteria or red blood cells) clump together: [with object]:these strains agglutinate human red cells [no object]:cell fragments agglutinate and form intricate meshes
• [with object] Linguistics (of a language) combine (word elements) to express compound ideas.