from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An implement having a semicircular blade attached to a short handle, used for cutting grain or tall grass.
- n. The cutting mechanism of a reaper or mower.
- transitive v. To cut with a sickle.
- transitive v. To deform (a red blood cell) into an abnormal crescent shape.
- intransitive v. To assume an abnormal crescent shape. Used of red blood cells.
- adj. Shaped like the blade of a sickle; crescent-shaped: a sickle moon.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. an implement, having a semicircular blade and short handle, used for cutting long grass and cereal crops
- v. To cut with a sickle
- v. To deform (as with a red blood cell) into an abnormal crescent shape.
- v. To assume an abnormal crescent shape. Used of red blood cells.
- adj. Shaped like the blade of a sickle; crescent-shaped.
from the GNU version of the Collaborative International Dictionary of English
- n. A reaping instrument consisting of a steel blade curved into the form of a hook, and having a handle fitted on a tang. The sickle has one side of the blade notched, so as always to sharpen with a serrated edge. Cf. Reaping hook, under reap.
- n. A group of stars in the constellation Leo. See Illust. of Leo.
from The Century Dictionary and Cyclopedia
- n. A reaping-hook; a curved blade of steel (anciently also of bronze) having the edge on the inner side of the curve, with a short handle or haft, for cutting with the right hand grain or grass which is grasped by the left.
- n. A sickle-shaped sharp-edged spur or gaff formerly used in cock-fighting.
- n. In embryology, a crescentie thickening at the posterior edge of the blastodisc in certain vertebrate embryos with meroblastic eggs, such as the fishes and reptiles.
- n. A crescentie whitish area in the choroid commonly observed in cases of myopia.
- n. One of the arms; which support the yarn guide-wire, or faller, on the spindle-carriage of a spinning-mule: so named from its shape.
- n. A sickle-feather.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an edge tool for cutting grass or crops; has a curved blade and a short handle
Middle English sikel, from Old English sicol, from Vulgar Latin sicila, from Latin sēcula; see sek- in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Old English sicol. (Wiktionary)