Of, relating to, or measured across a diameter. / Contrary; diametrically opposed.

(obsolete) A diameter.

A craftsman who cuts diamonds. / (professional wrestling) A professional wrestling move in which the wrestler takes the opponent's neck and drops them to the mat.

Separated by a diameter, on exactly the opposite side. / (especially in the phrase diametrically opposed) Absolutely (in opposition).

(luge) A paste used to polish the steels, containing microscopic diamond particles

(knitting) A lace knitting stitch pattern, multiple of 17 plus 2 stitches, 35 rows in pattern.

(chemistry) any of a class of compounds formally derived from acid anhydrides by replacement of =O with =NR, and -O- with -NR-

(rail transport) superimposed pair of railway crossovers, resembling a letter X, permitting to travel in either direction between a pair of parallel tracks

A memorable mobile phone number.

A type of hard colourless topaz (not actual diamond as such).