Serotinal

//sɪˈɹɒtɪnəl// adj

adj ·Rare ·Advanced level

Definitions

Adjective
  1. 1
    Synonym of serotine (“developing at a later time or later in a season, especially than is customary with allied species; specifically (botany), of a plant: flowering late in a season”). not-comparable

    "Soon, however, the allantois undergoes changes of development looking towards the formation of the placenta at the base of the ovum, where the chorionic villi becomes more and more developed, the serotinal tissue growing toward and around them and encapsulating them, while at the same time the vessels of the serotinal layer become dilated to form the material system of placental blood-supply."

  2. 2
    Occurring in or pertaining to late summer. not-comparable, often

    "The psoraleas, prairie clovers and blazing stars would probably occur to all us among the most the most abundant of the secondary species in the vernal, estival and serotinal aspects of the prairies respectively."

Example

More examples

"Soon, however, the allantois undergoes changes of development looking towards the formation of the placenta at the base of the ovum, where the chorionic villi becomes more and more developed, the serotinal tissue growing toward and around them and encapsulating them, while at the same time the vessels of the serotinal layer become dilated to form the material system of placental blood-supply."

Etymology

From serotine + -al (suffix forming adjectives).

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.