blowhole
11Blowhole (biology) — In biology, a blowhole is the hole at the top of a Cetacean s head through which the animal breathes air. It is homologous with the nostril of other mammals. As whales reach the water surface to breathe, they will forcefully expel air through the …
12blowhole — noun Date: 1691 1. a hole in metal caused by a bubble of gas captured during solidification 2. a nostril in the top of the head of a cetacean and especially a whale …
13blowhole — /bloh hohl /, n. 1. an air or gas vent, esp. one to carry off fumes from a tunnel, underground passage, etc. 2. either of two nostrils or spiracles, or a single one, at the top of the head in whales and other cetaceans, through which they breathe …
14blowhole — noun a) The spiracle, on the top of the head, through which cetaceans breath. b) A vent for the escape of gas …
15blowhole — 1. Opening in the roof of a cave or cavern through which air is expelled vigorously. In coastal areas the phenomenon is usually due to compression of air within the cave by incoming tides or waves [20]. 2. Cliff top entrance to a sea cave,… …
16blowhole — Synonyms and related words: air duct, air hole, air passage, air shaft, air tube, airway, armhole, avenue, breathing hole, bullet hole, bunghole, channel, chute, cringle, deadeye, debouch, door, egress, emunctory, escape, estuary, exhaust, exit,… …
17blowhole — blow|hole [ blou,houl ] noun count 1. ) a hole in the top of the head of an ocean animal such as a WHALE or DOLPHIN, through which it breathes 2. ) a hole in the surface of ice that ocean animals such as WHALES and SEALS use to breathe through 3 …
18blowhole — n. vent for the escape of gas or air; spiracle of a whale or another cetacean located far back on the head; hole in the ice to which animals (such as whales, seals, etc.) come to breathe …
19blowhole — noun 1》 the nostril of a whale or dolphin on the top of its head. 2》 a hole in ice for breathing or fishing through. 3》 a vent for air or smoke in a tunnel or other structure …
20blowhole — blow•hole [[t]ˈbloʊˌhoʊl[/t]] n. 1) zool. either of two nostrils or spiracles, or a single one, at the top of the head in whales and dolphins, through which they breathe 2) zool. a hole in the ice to which whales or seals come to breathe 3) mel a …
