(pron., a., & adv.) As an interrogative pronoun, used in asking questions regarding either persons or things; as, what is this? what did you say? what poem is this? what child is lost?
(pron., a., & adv.) As an exclamatory word: -- (a) Used absolutely or independently; -- often with a question following.
(pron., a., & adv.) Used adjectively, meaning how remarkable, or how great; as, what folly! what eloquence! what courage!
(pron., a., & adv.) Sometimes prefixed to adjectives in an adverbial sense, as nearly equivalent to how; as, what happy boys!
(pron., a., & adv.) As a relative pronoun
(pron., a., & adv.) Used substantively with the antecedent suppressed, equivalent to that which, or those [persons] who, or those [things] which; -- called a compound relative.
(pron., a., & adv.) Used adjectively, equivalent to the . . . which; the sort or kind of . . . which; rarely, the . . . on, or at, which.
(pron., a., & adv.) Used adverbially in a sense corresponding to the adjectival use; as, he picked what good fruit he saw.
(pron., a., & adv.) Whatever; whatsoever; what thing soever; -- used indefinitely.
(pron., a., & adv.) Used adverbially, in part; partly; somewhat; -- with a following preposition, especially, with, and commonly with repetition.
(n.) Something; thing; stuff.
(interrog. adv.) Why? For what purpose? On what account?
Example Sentences:
Whereon
Definition:
(adv.) On which; -- used relatively; as, the earth whereon we live.
(adv.) On what; -- used interrogatively; as, whereon do we stand?
Example Sentences:
(1) With the patient in a supine position, the droplets could be positioned over the macula in the preretinal vitreous space, whereon the FTBA PO2 could be influenced by the preretinal oxygen concentration.
(2) The heart was the only one of all the internal organs whereon significant pathologic changes were observed during autopsy.