'Noontide' definitions:

Definition of 'noontide'

From: WordNet
noun
The middle of the day [syn: noon, twelve noon, high noon, midday, noonday, noontide]

Definition of 'Noontide'

From: GCIDE
  • Noontide \Noon"tide`\, n. [From noon + tide time; cf. AS. n[=o]nt[imac]d the ninth hour.] The time of noon; midday. [1913 Webster]