IPA: //pɛkˈtɪneɪʃəs//
KK: /pɛkˈtɪneɪʃəs/
Relating to or containing pectin, a substance found in fruits that helps to form gels and thicken liquids.
The pectinaceous fruit was perfect for making jam because it helped the mixture to thicken.
Pectinaceous → It is formed from "pectin" (from Greek "pektos", meaning thick or congealed) and the suffix "-aceous" (meaning of or pertaining to). The word "pectinaceous" refers to substances that are related to or contain pectin, which is a thickening agent found in fruits.
Think of 'pectin' as something that makes things 'thick' or 'gel-like', and remember that 'pectinaceous' describes things that are related to this thickening substance.