a horselike fossil of the genus Chalicotherium and related genera, common in Europe, Asia, and Africa during the Tertiary Period, having a sloping back and three-toed, clawed feet.
any of various very large extinct Tertiary horselike perissodactyl mammals that had clawed feet but otherwise resembled titanotheres
Any of various large extinct mammals of the family Chalicotheriidae of the Eocene to the Pleistocene Epochs. Chalicotheres were odd-toed ungulates related to horses, rhinos, and tapirs, and had three toes on each foot ending in distinctive curved claws rather than hooves. Some species had front claws so long that they walked on their knuckles.
- Chalk and talk
noun (sometimes derogatory) a formal method of teaching, in which the focal points are the blackboard and the teacher’s voice, as contrasted with more informal child-centred activities
a soft, white, powdery limestone consisting chiefly of fossil shells of foraminifers. a prepared piece of chalk or chalklike substance for marking, as a blackboard crayon. a mark made with chalk. a score or tally. to mark or write with chalk. to rub over or whiten with chalk. to treat or mix with chalk: to […]
a chalked string for making a straight line on a large surface, as a wall, by holding the string taut against the surface and snapping it to transfer the chalk. the line so made.
- Chalk out
verb (transitive, adverb) to outline (a plan, scheme, etc); sketch