Main Entry: ad·sorb Pronunciation: ad-'so(&)rb, -'zo(&)rb Function: transitive verb : to take up and hold by adsorption adsorbintransitive senses : to become adsorbed —ad·sorb·abil·i·ty/-"sor-b&-'bil-&t-E, -"zor-/nounplural-ties —ad·sorb·able/-'sor-b&-b&l, -'zor-/adjective