the fourth sign of the zodiac; the sun is in this sign from about June 21 to July 22
a small zodiacal constellation in the northern hemisphere; between Leo and Gemini
(astrology) a person who is born while the sun is in Cancer
any malignant growth or tumor caused by abnormal and uncontrolled cell division; it may spread to other parts of the body through the lymphatic system or the blood stream
any small or medium-sized cat resembling the domestic cat and living in the wild
(of a mine or oil well) drilled speculatively in an area not known to be productive; "drilling there would be strictly a wildcat operation"; "a wildcat mine"; "wildcat drilling"; "wildcat wells"
outside the bounds of legitimate or ethical business practices; "wildcat currency issued by irresponsible banks"; "wildcat stock speculation"; "a wildcat airline"; "wildcat life insurance schemes"
any unwanted and destructive insect or other animal that attacks food or crops or livestock etc.; "he sprayed the garden to get rid of pests"; "many pests have developed resistance to the common pesticides"
any of numerous relatively small elongated soft-bodied animals especially of the phyla Annelida and Chaetognatha and Nematoda and Nemertea and Platyhelminthes; also many insect larvae
screw thread on a gear with the teeth of a worm wheel or rack
a software program capable of reproducing itself that can spread from one computer to the next over a network; "worms take advantage of automatic file sending and receiving features found on many computers"
a person who has a nasty or unethical character undeserving of respect