protopectin
/ˌprəʊtə(ʊ)ˈpɛktɪn/Biochemistry
noun
A water-insoluble pectic substance containing glucuronic acid monomers, which is present as a binding substance between plant cell walls, and which breaks down during the ripening of fruits and fleshy roots, giving rise to pectin.
Origin
Early 20th century; earliest use found in Chemical Abstracts. From proto- + pectin, after German Protopektin.
- time course
- time-critical
- time curve
- time delay
- time deposit
- time-depth
- time derivative
- time detector
- time difference
- time differential
- time dilatation
- time dilation
- time disc
- time disk
- time displacement
- time-distance
- time division
- time division multiplex
- time domain
- time draft
- time-drop
- time element
- Time-ese
- time-expired
- time-exposed