15-letter words containing e, l, i, p
- westphalian ham — a hard German ham with a distinctive flavor derived from being smoked over beechwood and juniper.
- whip-tailed ray — a whipray.
- white corpuscle — white blood cell.
- wilson's petrel — a small petrel, Oceanites oceanicus, that breeds in the Southern Hemisphere but ranges into the North Atlantic and Pacific oceans.
- wind-pollinated — being pollinated by airborne pollen.
- window envelope — an envelope with a transparent opening through which the address on the enclosure may be read.
- winter purslane — a plant, Montia perfoliata, native to western North America, of the purslane family, having edible, egg-shaped leaves and clusters of small, white flowers.
- xerographically — In a xerographic way; by xerography.
- yorke peninsula — a peninsula in S Australia between Spencer Gulf and the Gulf of St. Vincent. 160 miles (257 km) long and 20–35 miles (32–56 km) wide.
- z-zero particle — one of three particles, called intermediate vector bosons, that are believed to transmit the weak force. Symbol: Z 0.
- zoogeographical — Pertaining to zoogeography.