cad

noun4

1. •
   A low-bred, presuming person; a mean, vulgar fellow, especially one that cannot be trusted with a lady.

   • I make him sound like a cad, but he’s not. Early on, when I fell seriously ill, he cared for me devotedly. He’s witty, sweet, a great cook and easy on the eyes. — 2025
2. •
   A caddis (caddisfly larva).
3. •
   (no longer used) A person who stands at the door of an omnibus to open and shut it, and to receive fares; a bus conductor.

   • I’ve fallen asleep on my step as the ’bus was going on, and almost fallen off. I have often to put up with insolence from vulgar fellows, who think it fun to chaff a cad, as they call it. — 1851
4. •
   (slang, no longer used) An idle hanger-on about innyards.

verb1

1. •
   (no longer used) to mat or felt together

noun1

1. •
   Abbreviation of cadmium.

noun9

1. •
   Acronym of computer-aided design.
2. •
   Initialism of coronary artery disease.
3. •
   Initialism of computer-aided drafting.
4. •
   Initialism of control alt delete.
5. •
   Initialism of computer-aided diagnosis.

   • Therefore, there are various researches to improve a dementia diagnosis process in the field of computer-aided diagnosis (CAD) technology. — 2017
6. •
   Initialism of computer-aided dispatch.
7. •
   Initialism of cash against documents, an arrangement where the purchaser must pay the total price in cash in order to get shipping papers from the seller or (usually) a third party.
8. •
   Initialism of cold agglutinin disease.
9. •
   Initialism of caspase-activated DNase.