having thickened or hardened spots, as a leaf.
callus (def 2).
The Elements of Botany Asa Gray
a carbohydrate, a polymer of glucose, found in plants, esp in the sieve tubes
a callous condition. Botany. a hardened or thickened part of a plant. Pathology, callus (def 1a). Historical Examples Special Report on Diseases of the Horse United States Department of Agriculture Surgery, with Special Reference to Podiatry Maximilian Stern The Works of Robert Louis Stevenson, Volume 9 Robert Louis Stevenson Unexplored Spain Abel Chapman Love and […]
Jacques [zhahk] /ʒɑk/ (Show IPA), 1592?–1635, French engraver and etcher. Historical Examples Artists Past and Present Elisabeth Luther Cary Roger Ingleton, Minor Talbot Baines Reed George Cruikshank William Makepeace Thackeray The Duke’s Motto Justin Huntly McCarthy George Cruikshank W. H. Chesson A History of Caricature and Grotesque Thomas Wright Little Journeys to the Homes of […]
made hard; hardened. insensitive; indifferent; unsympathetic: They have a callous attitude toward the sufferings of others. having a callus; indurated, as parts of the skin exposed to friction. to make or become hard or callous. Historical Examples The Lookout Man B. M. Bower The Spenders Harry Leon Wilson Martin Eden Jack London The Story of […]