Knoop hardness
noun
ˈnüp-
: the relative hardness of a material (as a metal) that is determined by the depth to which the bluntly pointed diamond pyramid of a special instrument will penetrate it
Word History
Etymology
after F. Knoop, 20th century American chemist
- (as) American as apple pie
- (as) big as life
- (as) blind as a bat
- (as) bold as brass
- (as) clear as a bell
- (as) cute as a button
- (as) daft as a brush
- (as) dead as a dodo
- (as) dead as a doornail
- (as) drunk as a lord
- (as) drunk as a skunk
- (as) dry as a bone
- (as) dull as dishwater
- (as) dull as ditchwater
- (as) easy as ABC
- (as) easy as falling off a log
- (as) easy as pie
- (as) good as new
- (as) guilty as sin
- (as) guilty/miserable/ugly as sin
- (as) happy as a clam
- (as) hard/tough as nails
- (as) keen as mustard
- (as) large as life
- (as) near as someone can tell/figure