| AIRPROOFED | • airproofed adj. That has been made airtight. • AIRPROOF v. to make impermeable to air. |
| COINFERRED | • COINFER v. to infer jointly. |
| DENDRIFORM | • dendriform adj. Having a branched structure similar to a tree. • DENDRIFORM adj. shaped like a tree, e.g. a dendriform ulcer. |
| FERREDOXIN | • ferredoxin n. (Biochemistry) Any of a class of iron and sulfur-containing proteins, found in green plants, that function… • FERREDOXIN n. an iron-containing plant protein. |
| FIBERBOARD | • fiberboard n. (American spelling) A material made from wood chips or shavings, which are compressed and bonded with… • FIBERBOARD n. (US) a material made from compressed wood fibres, also FIBREBOARD. |
| FIBREBOARD | • fibreboard n. Britain and Canada standard spelling of fiberboard. • FIBREBOARD n. a material made from compressed wood fibres, also FIBERBOARD. |
| FIREBOARDS | • fireboards n. Plural of fireboard. • FIREBOARD n. a mantelpiece. |
| FIREDRAGON | • firedragon n. A fiery dragon; firedrake. • firedragon n. A fiery meteor. • FIREDRAGON n. a fire-breathing dragon, also FIREDRAKE. |
| FORBIDDERS | • forbidders n. Plural of forbidder. • FORBIDDER n. one who forbids. |
| FOREORDAIN | • foreordain v. (Transitive) To predestine or preordain. • FOREORDAIN v. to ordain or appoint beforehand. |
| FORWEARIED | • forwearied adj. (Obsolete) Worn out, exhausted. • FORWEARY v. (Shakespeare) to weary, exhaust. |
| FRONTIERED | • frontiered adj. Placed on the frontiers. • FRONTIER v. (Spenser) to border. |
| INFRAORDER | • infraorder n. Alternative form of infra-order. • infra-order n. (Taxonomy) A taxonomic category below suborder and above superfamily. |
| REINFORCED | • reinforced v. Simple past tense and past participle of reinforce. • reinforced adj. Having been or containing reinforcement. • REINFORCE v. to strengthen with new force, assistance, material, or support, also REENFORCE, RENFORCE. |
| REINFORMED | • reinformed v. Simple past tense and past participle of reinform. • REINFORM v. to inform again. |
| RETROFIRED | • retrofired v. Simple past tense and past participle of retrofire. • RETROFIRE v. to cause a retrorocket to become ignited. |
| RODFISHERS | • rodfishers n. Plural of rodfisher. • RODFISHER n. one who fishes by rod. |