noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The protein content of the embryo, endosperm, or perisperm of cereals, in the form of minute particles. countable, uncountable
2. 2
   granular protein in outermost layer of endosperm of many seeds or cereal grains wordnet
3. 3
   The outer layer (and its major cell type and its specialized protein) of the endosperm. countable, uncountable

Synonyms

All synonyms

peripheral endosperm

Etymology

1865/70; from Ancient Greek ἄλευρον (áleuron, “flour, meal”).

Related phrases

aleurone layercell type

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