Webster's 1828 Dictionary
GRINDING
ppr. Reducing to powder by friction; triturating; levitating; chewing. 1. Making sharp; making smooth or polishing by friction.
Webster's 1913 Dictionary
GRINDING
GRINDING Grind "ing, a. & n.
Defn: from Grind. Grinding frame, an English name for a cotton spinning machine. -- Grinding mill. (a ) A mill for grinding grain. (b ) A lapidary's lathe.
GRINDINGLY
GRINDINGLY Grind "ing *ly, adv.
Defn: In a grinding manner. [Colloq. ]
New American Oxford Dictionary
grinding
grind ing |ˈgrīndiNG ˈɡraɪndɪŋ | ▶adjective [ attrib. ] 1 (of a state ) oppressive, tedious, and seemingly without end: grinding poverty. 2 (of a sound or motion ) harsh and grating: the group's grinding, ear-splitting guitar. DERIVATIVES grind ing ly adverb
grinding wheel
grind ing wheel ▶noun a wheel used for cutting, grinding, or finishing metal or other objects, and typically made of abrasive particles bonded together.
Oxford Dictionary
grinding
grind |ing |ˈgrʌɪndɪŋ | ▶adjective [ attrib. ] 1 (of a difficult situation ) oppressive and seemingly without end: grinding poverty. 2 (of a sound or movement ) harsh and grating. DERIVATIVES grindingly adverb
grinding wheel
grind |ing wheel ▶noun a wheel used for cutting, grinding, or finishing metal or other objects, and typically made of abrasive particles bonded together.
Sanseido Wisdom Dictionary
grinding
gr í nd ing 形容詞 〖通例 名詞 の前で 〗1 きしるような 〈音 〉; きしみ音を立てる 〈物 〉.2 研磨 [粉砕, 研削 ](用 )の .3 過酷な 〈貧困 苦労 現実など 〉.c ò me [br ì ng A ] to a gr ì nding h á lt 〈物事などが 〉突然停止する [A 〈物事など 〉を突然停止させる ].
The Wordsmith Dictionary