'S' definitions:
Definition of 's'
From: WordNet
noun
1/60 of a minute; the basic unit of time adopted under the Systeme International d'Unites [syn: second, sec, s]
noun
An abundant tasteless odorless multivalent nonmetallic element; best known in yellow crystals; occurs in many sulphide and sulphate minerals and even in native form (especially in volcanic regions) [syn: sulfur, S, sulphur, atomic number 16]
noun
noun
noun
The 19th letter of the Roman alphabet [syn: S, s]
noun
(thermodynamics) a thermodynamic quantity representing the amount of energy in a system that is no longer available for doing mechanical work; "entropy increases as matter and energy in the universe degrade to an ultimate state of inert uniformity" [syn: randomness, entropy, S]
Definition of 'S'
From: GCIDE
- S \S\ ([e^]s), the nineteenth letter of the English alphabet, is a consonant, and is often called a sibilant, in allusion to its hissing sound. It has two principal sounds; one a mere hissing, as in sack, this; the other a vocal hissing (the same as that of z), as in is, wise. Besides these it sometimes has the sounds of sh and zh, as in sure, measure. It generally has its hissing sound at the beginning of words, but in the middle and at the end of words its sound is determined by usage. In a few words it is silent, as in isle, d['e]bris. With the letter h it forms the digraph sh. See Guide to pronunciation, [sect][sect] 255-261. [1913 Webster]
- Note: Both the form and the name of the letter S are derived from the Latin, which got the letter through the Greek from the Phoenician. The ultimate origin is Egyptian. S is etymologically most nearly related to c, z, t, and r; as, in ice, OE. is; E. hence, OE. hennes; E. rase, raze; erase, razor; that, G. das; E. reason, F. raison, L. ratio; E. was, were; chair, chaise (see C, Z, T, and R.). [1913 Webster]