What does cleavability mean?
Cleavability is the quality of being capable of being split, separated, or cleaved. The word is chiefly used in technical contexts and is especially associated with materials that divide along recognizable planes. A mineral, for example, may possess good or poor cleavability depending on the ease with which it breaks along its internal crystal faces. In chemistry and molecular biology, the term can describe how susceptible a bond or molecular site is to cleavage, including cleavage mediated by an enzyme. Cleavability should not be confused with cleavage itself: cleavability is the property or potential to be split, whereas cleavage is the resulting action or break. The word is more common in specialist literature than in everyday speech, but it is useful when discussing the structural behavior of materials or the susceptibility of chemical bonds to reaction.
nounThe quality or degree of being able to be split, separated, or cleaved, especially along a defined plane or chemical bond.
- The quality or degree of being capable of being split or cleaved, especially along a crystallographic plane, material interface, or chemical bond.
"The cleavability of the mineral determines the ease with which it can be divided into flat pieces."
"Researchers examined the cleavability of several peptide bonds under enzymatic conditions."
"The stone's pronounced cleavability allows it to split into smooth, flat surfaces when struck correctly."
The plural is grammatically possible but rare, usually appearing when different materials or properties are being compared individually.
"The survey compared the cleavabilities of several different crystals."
A mineral's cleavability is its natural tendency to break along specific planes, giving shape to the fragments.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does cleavability come from?
Cleavability combines the English verb cleave, meaning “to split or divide,” with the suffix -ability, meaning “the quality of being able” or “capacity for.” The verb cleave descends from Old English clēofan, “to split, cleave,” while the suffix comes through French from Latin forms associated with -abilis, “able” or “liable to.” The resulting noun was formed to name the property of being capable of division or cleavage.
How cleavability is actually used
This is an uncommon, chiefly technical noun used in fields such as mineralogy, materials science, chemistry, and molecular biology. It is normally uncountable and denotes a property or susceptibility rather than the act of splitting itself.
Easily confused with cleavability
Cleavability means the capacity to be split or cleaved, whereas availability means the state of being accessible, obtainable, or ready for use.