periderm (plural periderms)
(botany) The outer layer of plant tissue comprising the phellem, phellogen and the phelloderm.
(zoology) The perisarc; the hard outer layer of hydroids and other marine animals.
• reprimed
Source: Wiktionary
Per"i*derm, n.
1. (Bot.)
Definition: The outer layer of bark.
2. (Zoöl.)
Definition: The hard outer covering of hydroids and other marine animals; the perisarc.
Source: Webster’s Unabridged Dictionary 1913 Edition
25 November 2024
(noun) infestation with slender threadlike roundworms (filaria) deposited under the skin by the bite of black fleas; when the eyes are involved it can result in blindness; common in Africa and tropical America
Decaffeinated coffee is not caffeine-free. Studies from the National Institute of Health (US) have shown that virtually all decaf coffee types contain caffeine. A 236-ml (8-oz) cup of decaf coffee contains up to 7 mg of caffeine, whereas a regular cup provided 70-140 mg.
